well my advise will probly be sneered at,,,,, but you should either stay natty for a few more years and max out your gains, but definatly dont bother with little cycles here n there, as it will fuck u up right now
this will sound very irresponsible but if your goin to compete as a teen or jnr and think u have what it takes, go on and go on propperly, big doses from the start... i still think you can realy change your body in that period of your life, trab had similar theorys about this too,,,, weather its healthy or safe is another matter completely