Prior toHeather Locklear‘shospitalization for a psychological evaluation, her inner circle had “desperately” tried to help her for quite some time.“[Heather] is clearly not getting the proper medical and mental health help she needs. It’s not just about rehab for addiction issues, but about getting a proper evaluation and help for the underlying mental health issues,” a source close the 56-year-old actress tells PEOPLE.“She isolates herself, which only feeds into the other issues. Of course, you can’t force someone to get help — they have to want to — but it’s hard for someone who is sick to make smart choices and keep at it. She has family and friends who are desperately trying to help,” the source explains.Locklear was taken to a hospital over theFather’s Dayweekend after a family member called 911 to report that she was threatening to kill herself, according toTMZ.“Her parents are remarkable, and they have tried so hard. Her close friends have tried. It is very sad. This isn’t the Heather everyone knows,” the source says. “As a professional [actress], everyone wanted to work with her, she was never late, always prepared a joy on set. Also, she is a really good friend to people. For years and years. This person isn’t her.”Tibrina Hobson/WireImageThe source adds, “She really needs a proper evaluation, different medication, and clearly more help than she has been getting to truly determine what her mental health issues are. Right now, it’s heartbreaking for her friends and family, they are really worried, but unfortunately, their hands are tied with what that can do. Everyone just wants Heather back.”In late February, Locklearwas arrestedon suspicion of felony domestic battery and three counts of battery on a police officer. Police latersearched her homefor a firearm that was allegedly registered in her name.During the incident, theMelrose Placealum allegedly made threats against deputies, saying she would “shoot them if they ever came to her house again,” according to the Thousand Oaks Police Department.At the time, an insidertold PEOPLEthat Locklear “knows help is available, she’s sought it out before, but you can’t force anybody to get help,” adding, “It’s heartbreaking.”WATCH: Heather Locklear’s Friends Hopeful She’ll Seek ‘Help,’ Says Source: ‘It’s Just Heartbreaking’In March, Locklear checked herself into atreatment facilityto help with her battle with addiction.“She didn’t go because she was forced,” a longtime associatetold PEOPLE at the time. “There was no intervention. She went in on her own. She wanted to feel better and get to the bottom of what was troubling her.”Locklearhas struggled with substance abusein the past. In March 2008, her doctor called 911 reporting that she was suicidal, and that June, she sought help for psychological issues.If you or someone you know is considering suicide, please contact the National Suicide Prevention Lifeline at 1-800-273-TALK (8255), text “help” to the Crisis Text Line at 741-741 or go tosuicidepreventionlifeline.org.

Prior toHeather Locklear‘shospitalization for a psychological evaluation, her inner circle had “desperately” tried to help her for quite some time.

“[Heather] is clearly not getting the proper medical and mental health help she needs. It’s not just about rehab for addiction issues, but about getting a proper evaluation and help for the underlying mental health issues,” a source close the 56-year-old actress tells PEOPLE.

“She isolates herself, which only feeds into the other issues. Of course, you can’t force someone to get help — they have to want to — but it’s hard for someone who is sick to make smart choices and keep at it. She has family and friends who are desperately trying to help,” the source explains.

Locklear was taken to a hospital over theFather’s Dayweekend after a family member called 911 to report that she was threatening to kill herself, according toTMZ.

“Her parents are remarkable, and they have tried so hard. Her close friends have tried. It is very sad. This isn’t the Heather everyone knows,” the source says. “As a professional [actress], everyone wanted to work with her, she was never late, always prepared a joy on set. Also, she is a really good friend to people. For years and years. This person isn’t her.”

Tibrina Hobson/WireImage

heather-locklear

The source adds, “She really needs a proper evaluation, different medication, and clearly more help than she has been getting to truly determine what her mental health issues are. Right now, it’s heartbreaking for her friends and family, they are really worried, but unfortunately, their hands are tied with what that can do. Everyone just wants Heather back.”

In late February, Locklearwas arrestedon suspicion of felony domestic battery and three counts of battery on a police officer. Police latersearched her homefor a firearm that was allegedly registered in her name.

During the incident, theMelrose Placealum allegedly made threats against deputies, saying she would “shoot them if they ever came to her house again,” according to the Thousand Oaks Police Department.

At the time, an insidertold PEOPLEthat Locklear “knows help is available, she’s sought it out before, but you can’t force anybody to get help,” adding, “It’s heartbreaking.”

WATCH: Heather Locklear’s Friends Hopeful She’ll Seek ‘Help,’ Says Source: ‘It’s Just Heartbreaking’

In March, Locklear checked herself into atreatment facilityto help with her battle with addiction.

“She didn’t go because she was forced,” a longtime associatetold PEOPLE at the time. “There was no intervention. She went in on her own. She wanted to feel better and get to the bottom of what was troubling her.”

Locklearhas struggled with substance abusein the past. In March 2008, her doctor called 911 reporting that she was suicidal, and that June, she sought help for psychological issues.

If you or someone you know is considering suicide, please contact the National Suicide Prevention Lifeline at 1-800-273-TALK (8255), text “help” to the Crisis Text Line at 741-741 or go tosuicidepreventionlifeline.org.

source: people.com