16 y/o male and i like to do anal masterbation with a dildo. can i do it (and i'm not hurting myself when i do it) without causing any future issues?

Maybe/maybe not: The anal sphincter(muscle) is a delicate muscle. It learns to tell when you are ready to poo,but can stop it if it would be inconvenient. It can decide if you have gas, liquid or poo trying to exit, and let the gas out if no friends are around. Anal skin is loaded with sensors, so masturbation can stimulate the brain, but if you are aggressive and injure the muscle, you can loose some capabiliti