In my opinion, I'd suggest working on your anxiety issues before you figure out your sexuality. I mean, from the looks of it, anxiety has affected your past relationships, and from what it looks like to me, it's probbly not been for the better. I'd definitely recommend working on anxiety and then trying to figure out your sexuality.
It's definitely not been for the better. I'm not sure I'll ever be in a relationship again, and I'm significantly happier that way. I don't want to drag another heterosexual guy into a relationship with me and end up dealing with them expecting something from me that I may not ever be comfortable giving. All of what you said are good points, but considering all these problems suddenly emerged when I was in a relationship with somebody, I don't know if I can address it without subjecting myself to the same problems over again.
Hindsight is 50/50, but emotions are difficult