With new skates, after a bake, I've heard the recommendation not to skate on them for 24hrs. Don't know how true that is. I've never had the situation come up where I needed to make the choice.
In terms of weight. I can tell you the formula is simple. Burn more calories than you take in. Please don't take this as me trying to be a smart-ass. I've struggled with my weight for years. I'd yo-yo between 5-10lbs, but no matter how much hockey I played, I could never keep the weight off. And what finally clicked for me over Covid was not necessarily to eat less, but to take in less calories, I actually ended up losing 20lbs over Covid, because I simply substituted low calorie options for my snacks. For example, Instead of chips I ate popcorn. I can eat a whole bag of light popcorn, filling myself, and not even come close to the calories in a couple handfuls of chips.
Any ways, good luck. Hope everything turns out for the best.