Another tip. I’m a premium member so I get 4 a day, but I think you get 1 (maybe 2?) “sponsorships” a day. Before you start a match it will ask you to “start sponsorship” if you have one available. You want to make sure you’re wearing the apparel that you like (each kind of apparel has an ability enhancement, so you might want to not just go for looks).
Every game you play for one half hour will get you a sponsorship box, which basically is a way of upgrading your apparel. A win gets you a silver box. A loss gets you a bronze box. Make sure you select the apparel you’re looking to upgrade as your sponsor. It doesn’t guarantee you get what you want, but you’re much more likely to.