Why people continue to use drugs, even though they have a history of being mentally unstable?

&#x200B;<br><br>I'm the type of person who is already mentally unstable. Not like I'm actively psychotic or anything like that but you know, I've been diagnosed with a bunch of mental illnesses and I experience a lot of negative thoughts. <br><br>I've tried drugs in the past and did not have good comebacks. I was on antidepressants but they didn't work. All they did was make me more unstable.<br><br>&#x200B;<br><br>I'm wondering why people continue to do drugs, even though they have a history of being mentally unstable. I mean, we know that drugs can make unstable people more unstable while they're on them. Even marijuana can cause some people to become paranoid or something. So why do people continue to do drugs like that? I don't get it. I would think people would be more careful about what they put in their bodies, especially if they have a history of being unstable.<br><br>&#x200B;<br><br>I don't want to sound like some anti-drug commercial but I really don't get the whole drugs thing now.