About to start new gym and need supplement advice.

I have been out of the gym for a few months due to a new job, Well now I have alot more free time and tomorrow, I am planning on signing up with a 24hr gym near my home that I visted and Liked. I use Body fortress whey protein already for post workout but I need advice on other things I could use as part of my routine.

A little info about me to help with the advice.

I am 27(almost 28), Current weight is around 208 (was down to 188 but with job I lost track of myself...badly.), 5'10" and current total weight lost is over 130lbs. This loss was in less than 1 year so loose skin is a big issue. while clothed I appear athletic but my leftover gut goes in my pants....I am embarrassed by this but i am sharing it because I want good advice. I have heard of many suplements for preworkout such as Apidexin, Phenphedrine, Lipovox, 7-DFBX, etc. I have a few local nutrition store including GNC but I want something that will help boost metabolism, energy, focus, and help lower appetite.

Any info would be appreciated. THANKS in advance!