Ignore the people who are calling you pathetic. they have no right to judge your life or say what is or isnt worthy of making you feel like shit. Write a list of all the things that are making you feel the way you do, and all of the factors that are affecting them, e.g not having a gf, not trusting girls, preconceptions, insecurities, alcohol consumption etc, and focus on what you view to be the 2 or 3 worst ones that YOU CAN DO SOMETHING ABOUT. You arent entirely clear about your age, but if you are in school or college try to find an adult that you do trust or who you think will help and ask them for help.
The more you try and go on your own the harder it can be, and even though it can feel really hard to trust people at the moment and that nothing can ever get better, it really can, and all you need to do is just trust a little bit and get some results so you can build your confidence up.
Not all nice girls are ugly or taken, and not everyone has a hidden agenda. It seems that you have had some bad experiences with girls and your friends that have made you feel negatively about all these things. If this reply isnt total bollocks and useless, and you think that speaking to an adult might be impossible/ too difficult at the moment, you can PM me on here so i can prove to you that there are nice people out here who want to help and talk things through.
From your text i would think of alcohol as being highlighted as an issue, but it is also a reaction to an underlying problem, so if you can think of all your triggers to the behaviour that you think is harmful you can better see how to avoid them.
Girlfriends arent everything, and it seems that at the moment all you really need is to be shown affection, to be listened to, and be told how important you are, (which you are)
No job doesnt necessarily mean no social life: you can meet up with friends and other people elsewhere. Sure, it may not be desirable not to be able to go out drinking and to clubs etc, but try to prioritise and deal with just a couple of problems at a time so you dont get overwhelmed. If you cut down on the fags you have more disposable cash instantly, and less chance of cancer! I know that most of the posts on here seem really empty and you think things like "what do you know" and sometimes you just want to be left alone, but seriously try some of the stuff i've suggested if you want to help yourself and message me if i've left anything out or you want to talk further.
You can also post on the forum where the support leaders only can answer as they might have some more constructive answers than some of the abuse you might have encountered so far in this section
(no disrespect to those above me who have tried to help)
good luck, and remember that some of us out here do care, even if im accross the sea from you!
xxx
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dont wonder why im not smiling, wonder why you are.