1) Have you not need to master your piloting skills not to crash during landing or stuck in mailslot or being a sitting duck during a dogfight?
2) Maybe you're driving to fast? Rocks on your track are obstacles and its great fun to avoid them by steering or jumping. Take a closer attention to them and treat them with respect they deserve.
3) For turret aiming use EDtracker. Its great to use your head movements for aiming! Its 500% more accurate that way as well.
4) And for switching fwd/rear throttle set a non-toggle button on your hotas. You'll he able to only throttle rear if holding down the key. This option of how the coresponding key acts you can set in game's options.
5) It's clear for me you're missing a lot of fun because you never fully customised your SRV experience and you'r rushing to much. This baby can drive up to ca. 300 km/h mate. You need to be gentle with it's power.
6) And most important: TURN SRV ASSIST OFF in 1st place! It'll be way more forgiving to your throttle.