Considering IP treatment (serious responses, please)?

I just got back from a session with my therapist and I have never felt more alone and misunderstood.It wasn't because of something he said/didn't say.I just can't say the right things or do the right things to help people to understand what I'm going through.The meds help,but not enough and they aren't something I want to continue taking indefinitely.Talking to my mom,sis,doctors aren't helping.I've never felt like crying and locking myself in my room more than I do this very second.I feel like because I am an adult (very early 20s) I should be able to articulate the way I feel enough for others to help me. Instead,I'm stuck constantly at a loss for words and having people claim they understand me when they truly don't.I've done the harmful things knowing full well what the possible result may be but I feel like I can't help it anymore.At the risk of this question possibly being deleted (which I truly hope it isn't) I ask is there anything I can do to help myself?Nothing seems to work.