Learn how to ride off road first, cornering basics, body position, weighting and unweighting, riding roots and technical stuff, popping the front wheel up going off small ledges.
Then start to learn how to bunny hop. Practising in stages lifting the front end up, then just liftingthe back end up and try put it together.
Wheelies aren’t really important but i am trying to learn them to impress the other chavs on granny bikes.
Manualling i can’t do, so this is what i need to practise next.
Track stands you can learn anytime, either at home or by embarassing yourself infront of traffic.
Next will be bunny hopping off ledges and clearing gaps, then just improve your skills on each area, learning to pump and flow better on a trail.