If you really are minor running this you should remove any monetisation asap before getting into legal trouble. If you truely enjoy coding and creating games continue what you do and check with an adult what the legal framework would be to implement a "donation" function. If you are good at it and make players want to see more of your work you will get support for your vison, not by putting slop on the table and grabbing for cash. If all those ifs are positive, you have my sincere apologies for the bluntness and all my support for your future.