It has its ups and downs on the main stage. Its Sad as the main practitioners in MMA have been on the losing side as of late. A 42 yr old Machida and Horiguchi (both Shotokan) have been KOed in there more recent fights. Wonderboy has also lost his last few but due to being out-grappled.
Sweating profusely during training feels very rewarding for me. Its a sign of hard work during a training session. I would just caution and make sure you stay hydrated with electrolytes. I have classmates that drip sweat from the minute dawn the gi and stretch.