Seeing that package on the doorstep never gets old. Before you tear into it and start raking everything in the house, slow down a minute. Sort your picks by thickness first. The .025 stuff is what most people should learn on, the thinner .020 bends if you get heavy-handed, and the thicker .040-ish ones are mostly for padlocks with sloppy keyways. Pick one hook pick and one standard tension wrench and put the rest back in the pouch. You don't need fifteen tools right now.
Then get a cheap padlock you don't care about and start with single pin picking, not raking. Raking feels like magic when it works but it teaches you nothing. Set one pin at a time, listen for the click, go slow. I spent my first month raking everything and it stalled my progress badly. When I finally forced myself to go pin by pin on a Master #3, everything clicked within a week. Two habits worth building early. Keep your tension feather-light, like barely holding a paperclip, because heavy tension is why most beginners think a lock is 'picked' when relly they've overset a pin. And keep a little notebook of what worked. Sounds dorky, but writing down 'hook, bottom of keyway, medium tension' after a successful open builds your feel way faster than random flailing.
Last thing, only pick locks you own. Actual door locks on your house count as fair game, but a neighbor's shed or anything in a commercial building will get you in real trouble. Stick to padlocks and practice locks and you'll have years of fun ahead.