What should i do about my athletes foot? (so embarrassing :/)?

So I don't how I got it exactly (maybe from not taking off my socks after walking my dog or walking around on wet grass after it rains when I let my dog out, or maybe from someone at school, or maybe someone else in my house has it but doesn't know) but I have athlete's foot. I've massacred the search engine on what to do about it, and I got cream for it yesterday and I just did my third application. It's not crazily severe or even a tiny but moderate aside from one small crack, but I didn't notice it until a couple days ago because my feet weren't itching or burning (aside from the peeling skin but I just thought my feet were being weird), so I don't know how long I've had it for. I know that I'm supposed to keep my feet dry and such, but here's the problem: I sort of have sweaty feet. Even with sandals, my feet sweat because I have bad circulation in my feet, so they're always going from extremely cold to extremely warm. (My mom won't take me to the doctor for it, though, despite my complaining.) Anywho, I was thinking of just wearing socks and shoes with baking soda inside them to keep the moisture away, but then I read up on something that said you're supposed to let your feet breathe as well. Well, it's not like I can take off my shoes and socks during class since I'm in school right now. Oh, and I don't want to spread it around school. I'm going to a friend's house this weekend as well, to add to this mess :P I'm not too sure of what to do. Help? >.<