KK78

No worries buddy :) You can have the clutch enabled on the controller, it is just not set automatically, you need to go into controller settings and pick a button to map it to

A few things can cause this I have found, if driving auto and with traction control it can make certain cars almost stall when using the handbrake, so if you can ease off or turn off TC. Also map the release clutch function to L1 (on PS4) and when you come to a corner quickly handbrake then drop the clutch- takes  bit of getting used to but it keeps the momentum and revs up.