Opportunities for a High Schooler?

Hello all, I'm trying to find some new employment opportunities. I work a part time job that pays minimum wage so I want some extra cash on the side. I'm currently employed at Chegg but I'm having a lot of trouble finding students to tutor and getting them to join a session. So far I've tutored 0 people. Any tips? Also, I'm doing Postloop and making decent money from it but I'd like to have a bit more. What are some other sites where I don't need to input proof of age and can make me some money while I'm under 18? I know this has been posted before but I'd like something more up to date and relevant. Thanks!