Mate me too, you are not alone but we're lucky we live in a time where there is a lot of help available. For me, alcohol is one thing that always makes both worse so despite loving a few dozen beers I have to mostly avoid the stuff to function.
Maybe a trip to the GP? There is help out there but is blokes tend not to for whatever reasons. I'm on a anti depressant that really helps, despite my initial reluctance to try..
Things do get better but sometimes we can be our own worse enemy's. Talk to someone bud, you can get on top of it!