I've been lifting or about 4 years now and I'm not sure if Supps are the next step, but I would like to start taking some. I'm currently trying to lose body fat, but also trying to keep muscle growing. What supplements, if any, would you guys recommend? I'm 16, height 5'7''ish, and weight about 170. Money would probably be an issue and of course mom's ok would be needed.

Also I've been taking the B12 vitamin for over a month. Is it worth continuing use?

Thanks