>>1 Okay first off, get your priorities straight. Dreams are things that you have to work hard for, dreams that are tough to achieve require hard work. If you want to be a big name director then you better get your act together. A technician is a good way to keep in touch with your goal while you're working for it, but if that's all you're planning on doing then you're settling. Going to university or college is a good idea, yes studying can be painful and annoying but there are many programs for media, movies, making of movies, movie effects, directing, acting, producing, etc. so you won't be studying things you don't like the way you do in high school, you'll be studying things you enjoy and are passionate about. It's also a way to explore what you really want to do, like for example you might end up being more passionate about producing than directing. Consider college/university, and to get into a good program make sure that your marks right now are good enough, research your options.
Now onto girls. From what you've wrote it seems as though you just want a girlfriend for the sake of having a girlfriend. Don't think like that, girls don't just become girlfriends, relationships take a lot of effort and stress sometimes. So if you're wanting one just make sure you're mentally prepared. As for the girl you like, go for it! Ask her out to a movie, if she says yes then awesome but if she says no and avoids you then don't sweat it. There are tons of girls in the world and plenty more people to have as friends. As for people to talk about anime with, try the chat here, lots of dollars love anime. Love can find you surprisingly so don't stress about it and try to live regret free and take a few risks.
For depression, try writing more often as a way to relieve stress, that helps me. You may want to get a psychologist's advice/opinion as well.
I hope that helps! :3