Sure, happy to help!

If you're willing to work out three times a week, I'd say that you could also do the push-pull-legs routine. It's super simple. On push day, pick one chest exercise, one triceps exercise, and one shoulder exercise. On pull day, do one lower-back or lat exercise, one trap exercise, and one biceps exercise. On leg day, do hamstrings, quads, and glutes. If you structure it like that—just three exercises, three times a week—it should put you ahead of almost everyone. Because most people don't lift. :)

So here's a sample schedule. Do 3x 8–12 of each:

Monday (push): Push-ups or bench press; tricep dips or skullcrushers; overhead press

Wednesday (pull): Chin-ups or pull-downs; shrugs; bicep curls or hammer curls

Friday (legs): Dumbbell, bodyweight, or sumo squats; dumbbell deadlifts; dumbbell hip thrusts

The beauty of a routine like that is that you can vary it as you like—there are dozens of available exercises as replacements for the above—and you can make it as intense as you want as well by doing heavier weights, more reps, etc. If you get close to failure at the end of your sets, that's good enough. And you can completely do it with just a set of dumbbells. It might be handy to have a bench for doing bench press as opposed to push-ups or for tricep dips, but it's not necessary.

I hope that helps! Let me know if you have any questions.

Edited to add: And don't feel like there's a bar to jump over before you can start something like this, either. If you can't do push-ups, there's no reason that you can't do them on a wall or on your knees. That's just as good!