Hello to you! And thank you! I think that for starters, you could have a look at the very basics of a general physics course, if you’ve never studied it before. For example, the linear motion, relationship between force and motion, and maybe look at specific examples of forces (gravitational, elastic, etc.).
Then some definitions of potential and kinetic energy, and energy conservation. These are the core topics.
Once you understood the energy conservation and forces, you could have a look at oscillations and waves. Also the laws of thermodynamics (entropy and heat and all that, pretty important I think).
Electric and magnetic fields are slightly more advanced topics, though I’ve studied them in high school. But since there usually are specific courses in Electromagnetism in college, you probably don’t need to study them right away.
You could have a look at special relativity, it’s always fun and not too complicated if you got the motion equations.
Personally, I think the Halliday-Resnick is a good book (here). I know it’s massive, but you need 1/5 of the stuff if you’re looking for the basics.