first learn to ride switch on trails and get comfortable going pretty fast. when you start taking off kickers, learn on ones with out big lips and not very huge ones either. two things when taking off : don't learn forward and don't turn too early (i had a bad experience turning too early, just be patiant and don't get scared). if you work on it youll progress fast, i went froming barely being about to ride fakie in the beginning of the year to doin switch 5s at the end....... before i snapped my shoulder. good luck bro.
~chris
'If the bible has taught us one thing and nothing else - and it hasn't - its that guys should stick to guy sports and girls should stick to girl sports, like foxy boxing and hot oil wrestling and such and such' - homer simpson