I know where you're coming from dude.I'm going through the same shit here.It's rough not having anyone to lean onto.One can only move so far on their own before reality sets in:That everyone needs friends to live a life.
I hate to be realistic on this dude(I hate saying what I'm about to say),but this is what people have proven to me,what they are going to prove to you,and what people like that have proven through time:
-They will not give a shit.Most people are too busy worrying about themselves,and more and more,people are losing bonds with each other and end up backstabbing everyone just to get ahead,or nail the girl.Honor and integrity is dying dude.
-They will also take time to screw you over(You in general).People these days are willing to make another suffer so that they can move upwards in life,even in the pick up game.I went to a teen night in a club,and made many approaches.Out of about 20 different approaches,13 of them were taken by assholes who tried to make me look bad(Young guys,especially in High school,will always fuck with you to get ahead).In the field,it's called AMOGing.You will see it more as you grow in the Pick up arts.
-And yes,unless one has unshakeable confidence,you will ultimately fail(Again,you in general).Mystery had said in the opening chapters of the Mystery Method that "Nature will unapogetically weed your genes out of existence" if you fail to attract women.Although I think that is one of the most fucked up things to ever tell people,it is truth,and life's truths CANNOT be overriden.Those who suffer must,according to the rules of social relationships,overcome,or perish.
Trust me,I,and most likely everyone else involved in pickup,wish this werent the case,and that the whole pickup game wasn't as complicated as it is,but,as Darwin had proved,only the strong survive.Of course,I am in no way,shape,and form calling you weak.It's just that,like me right now,you're getting beat down unfairly by life,and cant seem to find any solution in sight.
Well,I'm not going to tell you what you SHOULD do,cause that would just be the easy way out.I could tell you just hang on,everything will be alright,but that wont do you any good,because that's not what you want to hear.What I will tell you is what you CAN do:

Take up a physical hobby,such as martial arts,parkour,or weight lifting.Working out will allow you to get in touch with you're inner animal,as well as get you in good shape to even further help you suceed with women.

Read more books.Not so much the academic-style mumbo-jumbo you were forced to read at school,but more like Robert Greene's "48 Laws of Power",Mystery Method,Magic Bullets*,Sun Tzu's "Art of War",and all related books.Knowledge is power.

Look more into the subject of "Emotional intelligence".IN NO WAY am I hinting that you're emotionally stupid,but trust me,it might help get in touch of how you can read people.
As for the future,life is unpredictable.Hopefully,if you do the right things,events will set up in a way that,if you put your mind to it,you can get out of your rut.
Take it easy.