hi kookeee,
i'm a not pro driver, but on your situation, i can suggest:
1) listen to your instructor, if he/she says its ok. its >90%
safe (you really only need to pass and get the license)
2) if getting the biting point is your concern, take your time to
get the biting point and when you got it, press the accelerator
harder (it'll definitely move faster)
3) if getting the biting point is not a concern, try learning to
hold the biting point to a point where the car will not slide back
or move forward, hold it there while waiting for traffic lights or
cars to clear. but same, step on your gas harder to pick up
faster.
4) remember to heed your instructor's advices, they'll help u get
your license.
hope these helps. 