goszka, Zarek and ANM775, thank you all for the replies and the comprehension.
I know I'm being too superficial with this question, and perhaps in my main post, it has seemed that I'm looking for the woman of the dreams of any guy, those movie star's and top model's standards. But that's not really it. I just want a girl that's reasonably attractive to me, and nothing more. The overwhelming marjority of the people can do that, either by appearance, or by personality, or by charisma... but the things gets so much harder when you is damn ugly.
About the obssession with pretty girls, I'd say very appreciation, not really obsession. It's just sad to know that you'll never date a person that you find attractive because of yourself appearance, do you understand? When I was younger, I was very much confident that I'm now, because I didn't noticed how bad I was looked (and still looking). I think it's because this that I had this disillusion with that case. If I had known that I was far from attractive since an early age, I would not even have created any hope of dating someone that I consider attractive. But unfortunately, the truth came a bit late for me. Since then, I feel like an idiot to have believed that I could have a chance to date someone reasonably attractive to me.
But it's not only because that. I feel bad for being ugly for the pictures question mainly (although I have paid less attention to it on this post, this is really the biggest problem for me). I haven't profile photos in no one of my social media's profiles because I don't like to take pics. I always get weird in them and it really makes me sad. All my friends around me having fun, taking pictures of your good moments to keep as souvenirs, and I can't even do this without looking awkward. It's really depressing.
I just wish I didn't care about that anymore, but I can't. That's why I posted here: so that people with good intentions could help me if possible. You guys have already helped me considerably just by understanding my point, and for this I thank you immensely. I'll definitely follow the types that you gived me, Zarek.
And goszka, I doubt that you are really ugly. Perhaps, in your case, it's just lacks of self-esteem, unless you really, REALLY have sure that you're ugly, just like me. But I really hope it's the very first case.