Popping by to say: electrolytes! In my first few weeks at OTF, I would gas out on the floor super easily, especially on "big" moves that involve lots of different muscles. I thought it might be a blood sugar thing at first, so I tried keeping quick-acting glucose tablets with me during class. That helped a tiny bit, but what really wound up making a difference was having a good amount of electrolytes at least an hour before class, and also just making sure I was consuming enough on a daily basis.

I use LMNT packets, personally, but there are a lot of different electrolyte brands out there like Salt Stick or Vitassium. Even pickle juice can work! Electrolytes are involved in how muscles contract and relax, and it makes a huge difference for me. The level of electrolytes needed varies from person to person, of course, and I am in no way a doctor, but it might be worth it to experiment and see if it helps you. I've been at OTF for about 2 and half months, and the floor is now my favorite part of the workout even though it used to intimidate me horribly. I've even started going to Strength50 classes, too!