Welcome to the forum Being under 18 means that you will need to have full face protection, so either a full mask or combination of goggles and lower face mesh (protecting nose and mouth). I think that having your own eye protection is better than using rented ones because you can wear something that you like and know only has your sweat inside. There are lots of options to choose and a range of prices. Search on terms 'fogging', 'mask', 'mesh', and 'goggles' to see some of the threads on the subject and opinion of other players. You may want to try a few games first just to see if you like the hobby before buying your own kit.