You are getting a lot of the right advice here, but deliberately trying to influence your weight in this way can ultimately lead to some pretty harmful/dangerous behaviors from my perspective, both physiologically and mentally.
Please don’t focus on deliberately altering your weight for performance gain. Instead, a great place to place your energy and attention can be in fueling your workouts and recovery, nourishing yourself, and staying body positive if you fluctuate throughout seasons. Lots to look up in our nutrition archives, but heres my favorite thus far: