Masterbation tips and stuff loll?

Mkayy, so im a mid teen and been really horney lately, idk why, but yeahh I usually use a back massager and straddle it, I've tired the shower head, a toothbrush, but idk if I'm doing it right and yeahh, I don't wanna use my fingers cuz I'm a bit scared, and I really don't want anything inside me but idkk, any tips, tricks, ideas? Think sanitary hahaha, me and my mom are open about sex but I never take to her about masturbation, soo yeahh helpp!! :)