How to do camp in Thailand smart?

Hi all!

Im going for a muay thai camp for 3 weeks in December. Im female 24, I have trained for 10 months here at home muay thai 3x a week + 3x fitness a week. I would say I am in good shape, but I know the standards down there are completely different from my hobby standards of good shape.

I am currently trying to do some injury prevention (shins, calves, hips, shoulder, ankles, neck), any recommendations would be lovely!

Since I only have 3 weeks, I would love to attend as many 2 a day sessions as possible, however I struggle to figure out how I should go about it;

1) How did you guys work smart to prevent injuries at camp e.g. from overtraining or shinsplinters?

2) I already have super low bodyfat, and even while trying to add weight for a while now I have been failing. I am currently eating 3200-3500 calories a day just to maintain, and I really struggle to reach the calories, even though I do dirty bulk and loads of liquid calories. I calculated that if I did the 2x muay thai a day in Thailand I would have to eat 4500–5200 kcal a day JUST to maintain. How tf do you people do that? Im scared that even if I was able to follow technique and shape wise, I wouldnt be able to uphold a calorieintake that could match the workload of a camp, and injuries and sickness will happen if I dont. If I loose more fat, I will be in a health “danger zone”.

I would love to hear you guys’ experience, and how you have dealt with eating enough and prevent injuries?