Thermo Shred, should I take it next?

I've been taking thermo gain for a few weeks now and it's working pretty well for me. I like it. I have about a month's worth left, and don't know what I should do once I run out. I've been bulking for 8 weeks now, and in a month that'll be a solid 3 months. I could continue bulking, and get another body of thermo gain, or I could try cutting. Loose all my fat, break out the six pack. I'm 5'5 154 pounds right now, but I don't know what my body fat % is. I'm sure I have at least 15lb's to on me though.

So, after I run out of thermo gain, should I just pick up some thermo shred and start getting ripped? Or get another bottle of thermo gain and just keep building for a few more months?

16yrs young, 5'5, 150lbs
10.5% body fat (working myself down to 7%)

Bench: 250lbs