qwerdt - skills

mousebutton, f, z, x, v, g - items

§ - tp

c - select hero (got used to this from HoN)

f1 - select courier

1 - select all units

2 - select all other units (not hero)

3-6 - ctrl groups

space - directional move

n - quickbuy

y, u - chat wheels

< - scoreboard

another mouse button - voice chat

middle mouse - screen drag or w/e it's called

Anyone have a program or something that I could use to practice using hotkeys?

Just go into a bot game and play around with it. And don't be afraid to change stuff around, in my experience you get used to new keybinds quicker than you think. I'm not 100% happy with my setup and will definitely change some things in the future.