How did you guys start to tutor kids?

Lol going through the same thing 😅
What I'm doing right now though is going to my parents friends and ask them if they might know someone who wants their kids tutored. You could also try neighbours, family, advertising it on the locally etc. You could even try advertising it online

try looking for local tutoring branches/companies (eg explore learning, Varsity etc), these typically do focus on younger children but would be good for a CV or to advertise yourself, because you would be trained and have experience