Hey, OP, not a whole lot of tips from me as I'm a rookie also. But I just wanted to show some support, newb to newb. Good on you for doing your own maintenance.
I used about a third of a bar my first time and somehow got scrapings on the top side. When I got done, I was a little wtf? It was a mess on my top sheet. As with most things, there's learning curve. If you haven't read the maintenance guide and sticky on waxing, I highly recommend it. You'll use less wax if you understand that there shouldn't be a layer of wax sitting on the base: the wax is absorbed into the base. It's that little nugget that I just kept in my head and while the wax was heavier at the nose where I started, I had the wax amount pretty much dialed in by the tail. Keep at it, and thanks to everyone else for the tips.