Mike, I know the way you are feeling, but its a struggle to find the right words to say about what is the best way to go about the situation. When you say your problems include;
"Money, mates, family, past events, my future..."
I take it money being with your job or lack of work coming your way? If so, there is always a way out of money troubles, believe me, I am in a stupid amount of debt for someone who ain't been to Uni.
Friends, most will stab you in the back the second you turn around, over the past few months, I can count my friends on 1 hand, and the rest are just acquaintances. Its not a bright outlook on the situation, but think about it deeply, its true.
Family and past events, I take it this is about your mum passing away, I really couldn't say anything about that, it must be hard, but its in the past, now look to your future, smash your goals, don't make 1 big goal, make many little ones that will one day lead you onto that big goal, or you may loose sight of it.
Its been a struggle to find just those words for you at the moment, I have nights like you're having, guess its just a part of being young, but head up
and show the fuckers in the world what you're made of!