I would. In US, rated M is actually for 17+. Ratings also vary from country to county, but I think US should review that rating and lower it down to 15 tbh (or increase the teen rating to 14). We already have A for "adults only", but nobody uses that since M is so close in the age gap to it. Your age is also the age of high schoolers, where young adult novels are often part of the curriculum, and where college-prep and AP classes (on ground or on an actual college campus) start, so I don't really see why place you in the same age gap as someone who's 13.