Alright, Chance, here's the drill.
1) Grab a roll of film and pull the lead out some 4 inches.
2) Drop film in film chamber as indicated in the diagram (make sure the long end points to where the bottom plate goes. Do this with the camera back open as well.
3) When you drop in the film, also make sure the extended lead goes into the body.
4) The tip of the lead should go in between the prongs of the take-up spool. If you need to make it go "behind", do it, but in essence, it goes between two of the three prongs.
5) Gently push film canister into body. Help film fit in the film chamber with the tip of your finger. The goal is that the sprocket wheel engages the film perforations. This is the real way in which Leica cameras pull film. The take-up spool only collects it, it will not pull it. The teeth in the sprocket do it.
6) Once the film perforations have engaged with the sprocket's teeth, if you want to ensure work, tug, very gently, the film advance lever. If the sprocket wheel moves and pulls the film out of the canister, you're set to go.
7) Close back of camera.
8) Place bottom plate in place.
9) Advance film. If the Film Rewind crank moves every time you advance the film with the lever, you have been successful at loading your camera.
10) If it does not move, remove bottom plate, lift back and check.
11) In case you want to remove film and reinsert it, make sure it falls freely out of the camera. Otherwise, move the film rewind lever (which is the little lever on the front of the camera, next to the tiny "R") to the right (camera facing you), and then rewind film back in the canister, very carefully, so as not to get it all into the canister.
12) Remove film.
13) Go back to step 1.
It takes time to get it right... but, more than time, it takes a little practice. I took a roll of film and made it my "practice" roll, so I loaded my camera with it, and later I opened the camera with that film in just to see it go all the way. Yes, you wreck a roll, but you also learn how to load the camera without a hitch.
Good luck! 🙂