I think the best thing you can keep doing is telling yourself that your teeth will NOT be this way forever, you will soon be in braces which WILL correct what you don't like about them.
I have suffered with depression for 10 years now (since the age of 14) and a year or two ago there was something about my appearance that made me even more depressed, it literally took over my life and stopped me going out (my job, friends and everything). I actually became suicidal because I was so obsessed with it (obviously my depression wasn't helping the situation), I was under strict doctor care and was advised to seek help from a psychiatrist. The thing is, that 'thing' about my appearance I didn't like (and still don't like) will NEVER be gone or get better, it's there for life like a scar, so it was extremely difficult for me to 'get over' as there is no treatment or cure for it. I'm still not over it, not by a long shot, but I've just learnt to deal with it better than I did before. Living with depression everyday for 10 years has kinda gotten me used to thinking negative about myself, it's just how I am and I do still struggle with it. I have to try and try not to let it take over. I wish I could change it but I can't. Anyway, enough about my issues!
Braces will fix your teeth and I just know you are going to feel sooo much better once they are on and getting to work
Thinking about it, I was more judgemental of my teeth when I was in my last relationship, but since being single I haven't worried about them as much.
Try and stay positive, I know it's hard... but soon you will be on your way.