Hello! New peep here

Hi, I'm just looking for people that share their experiences on getting slimmed down and I bumped this website, I'm currently using the P90 program (which is a gift to me by my brother since I'm getting rounder as far as I can remember) Anyone uses the same program or is currently in it? I'll be happy to know what do I need to do or get (like supplements and stuff) since I'm not really familiar with the brands of protein shakes etc. Help will be appreciated, Thanks! Have a good day everyone!