Weight training and Jiu Jitsu!

Hey yall! Ive been on Trizipetide for about 6 weeks and I've lost 15 lbs, but I have lost some muscle according to my InBody scan.

I do BURN boot camp 3+ times a week and jiu jitsu 2- 3 times a week.

Do any of y'all have advise for how not lose muscle and how to keep performing well?

TYSM <3