When you say you're failijg to find someone to love you....you're 18. Most 18 year olds don't really know what love is. Have you just gone to one shrink and one therapist? Because some really suck. I would break my heart if you killed yourself at 18 without even having lived. Is there anything that makes you happy? Travelling? Anything? You can't expect to live a full life in 18 years. Please don't be in a hurry to grow up because it's awful. I'm 34 and have never been in love but I've been physically sick since I was 20. I just don't want you to go until you've exhausted every option.
The least painful way is fentanyl but I don't know anyone who can get that. My friend did when he thought he was buying heroin but it was fentanyl and he died.
That's what this whole page is about. Helping each other die.
@Sweet emotion : Although you write mostly excellent comments, I really disagree with "Most 18 year olds don't really know what love is". I mean sure, there are many facets of love and different aspects, but I wholly disagree with that comment.
However, I agree with the overall spirit / intention of your post.
@RedEagle67 : There is very likely someone out there who will truly love you. You just might have to be patient until you meet them.
Regarding your mental health issues, those might well be solvable.
Once you get "PM" access (after making some more posts - eg you can use the "games" section), feel free to PM me (if you wish) - I'd be happy to talk to you (or PM with someone else - there are many people on this forum who would almost certainly be happy to discuss with you).