I have this issue after being off a bike for nearly a year , and am only 23 bud.
If you could do it before why can,t you do it now, you must have bottle to of tried the gap,tap etc which injuried you in the first place.
All i do if I,m losing the bottle on say for example a high drop is get down not look at the drop, and turn around get back up and do it...I,ve learned the longer you stand up there thinking about what could go wrong its most likely it will go wrong as your body won,t be relaxed.
Stop worrying about what could go wrong and see what will go right.
Thats just the way i deal with it , Lads on here will have some great advice for you and you,ll be back on form in no time