mga idol! help naman! di ko magets talaga ung mga rudiments na yan.. di ko makuhang mabilis, di ko makuha ung maayos na bounce! hirap na hirap ako I'm no expert but I think you just need a little more patience, first off be sure to make good use of metronome, this really helps. Practice - there is no other choice. And practice in pillows, this strengthens your forearm, wrist and your control. Also find the comfortable grip and technique for you, and practice the rudiments one at a time, don't rush.
About the technique, I hope this helps because it did to me, BIGTIME. Its the open/close technique,
VIDEO
but some also use the wrist technique (whatever they call it) so just choose whichever is more easy and comfortable for you.