OK TW, I am a bit in unknown territory here because I dont know the social structure of your area.
Here I could direct you to quite a few youth organisations, including touch football (lots of mixed teams) indoor cricket, tennis, squash, swimming, athletics, basketball, archery, gym, in the sporting field.
Walking clubs, field naturalists, scouting, police citizens and youth club, YMCA, drama societies, young rotary, debating societies, dancing groups, skate board groups and that is just off the top of my head. If i looked them up in the phone book I could find heaps more and I live in a small city of 60,000 people.

So mate, you have to put in some effort and not sit on your bum and say 'There is nothing for me to do' I am sure that if you looked hard enough there will be clubs that you could be in that don't cost much money and that will take your interest and give you something useful to do with your time. Then you will mix and meet people and benefit from it.

Its tough being unemployed and morale sapping but keep trying and don't always take no for an answer. Keep ringing them back and dropping in. Someone will recognise your enthusiasm and determination and give you a chance.

I hope there are some ideas here for you