Learn a technique called 'heel and toe'. In reality you use one side of your right foot on the brake and the other side on the gas(when you are stopped). Pivot or twist your foot to release the brake and give the engine some gas, let up on the clutch at the same time. Takes timing, coordination and practice. Master this skill and you'll never roll-back or stall.

dave and xtoy - then go on to double-clutch downshifts