in ur age group is normal... but every thing have in a limit... datu kshaya [ weakness, lazyness,disrurb mind] occure due to more masturbation.. but no any major problem occure in future.. relax.... sex in mind so consentrate ur mind on other thing. start yoga
, pranayam. aviod sex gossip, porn movie,etc
best option for it marriage... so do fast and be happy...