I tutor my 8 year old neighbour and I am 17 nearly 18. They asked me if I would be willing and I said yes. Start by looking locally is what I am getting at. Post on Facebook sites, social media, in the newsagents window, anywhere that a parent or a student might see! Now that I tutor the little girl, some other parents have mentioned how if they need a babysitter/tutor in the future they will remember me. Also, if you do go into tutoring, make sure you prepare and take a folder of things that you can do with the student, just in case they have no school homework or a problem they need to solve. I also always take a fun task and a quiz, flashcards and a multiplication colouring sheet. Good luck!