I also have very sweaty feet and honestly having a good pair of cotton socks helps a lot, you need to try to get some that have at least like 90% cotton, you’ll know they’re for real if they’re not elastic, the ones that are elastic basically have some kind of plastic fiber which makes you sweat a lot more. Then I use feet powder, but don’t use too much because otherwise you create a layer of feet powder and sweat which starts to accumulate and it’s also bad. Also another super tip is that you need to change your socks relatively frequent (I try to use a pair for 2 days, 3 maximum depending on how much I’ve sweated) and try to not wear socks/shoes at some point in the day so that it can breathe.