gym split for busy college student as well as recommended exercises?

i’ve only ever really used dumbbells at home but i’m looking to get more into working out so advice would be greatly appreciated. don’t really know what info is needed but i’m 19f 5’2 105 lbs. i do muay thai as well so any exercises that could help with strength and conditioning for that would be nice, but any general workout plans would be helpful. also, im at a moderately difficult college + major so any advice for keeping up with the gym, staying motivated, and just not being intimidated at a new gym please 🙏