skin elasticity

I'm losing weight now. The first 10 kg went away quickly (three weeks). Now the skin on the arms and stomach looks so-so. She's very flabby. I started training, I am already on a HEALTHY diet, because before that the first 10 kg I ate 1000 kcal. So what to do with the skin? How to make it like...

To preface this, I've been on TRT at 200mg/wk, daily IM, for 8 weeks. I recently got labs and sodium, potassium, chloride and all blood markers came back within normal range. Before starting TRT, my thirst levels were normal and I didn’t have these… skin elasticity issues. I don't know exactly...