beginner

hi everyone! I really need help on how to start a recomp as a beginner. Any tips you can share on how you improved your habits and body?

Additionally, I prefer to do exercise at home, do you have any suggestions for good youtubers out there?

btw I am 4'9 and 48kg, the only activity I do is walking but is very inconsistent due to my class sched but may get better at it now that I don't have classes yet.