Matt, you've already received excellent advice from the best. I just want to add my voice to the chorus.
First, get some hands-on training - you have an offer from Karen, who walks the walk as well as any person on the planet I know. Take her up on that offer and everything else needn't even be said.
Second, I've been very fortunate to work with Marty Gallagher over the last six months, and I met Marty when I watched his 2-hour presentation on squatting at the first Easy Strength weekend a few years ago. Marty makes it simple - if you can't squat your bodyweight well, you don't move on past that. The kettlebell goblet squat is the next thing you work on, and after that you might work on the kettlebell or barbell versions of the front squat, and then and only then, the barbell back squat. This is a solid progression and one you shouldn't ignore.
Last but not least:
The kettlebell is the tool of choice at StrongFirst for good reason. Stick to kettlebell sumo deadlifts, kettlebell goblet squats, and standing kettlebell presses until you are ready for other things. If you learn to do the basic kettlebell lifts well, you'll have laid the foundation upon which you can build for the rest of your life.
-S-