How to do an aerial on my trampoline!!??? please answer!! im desperate!!?

heyy! im 13 and i wanna learn how to do an aerial on my 15foot trampoline! yesterday i was trying to do it but im rlly confused by what to do... the first thing i neeeddd to know is: u can do a cartwheel two ways from the side or starting from the front... which way does the aerial start from??? also i watch a guy on youtube and he said tuck ur arms kick up with ur back leg and when u kick jump at the same time.(he was also in martial arts) so is that right?? but he also wasnt on a trampoline... so am i suppose to do big jumps then glide over!!?? im rlly confused! also i have a few questions about my legs and arms.. heres what i believe im suppose to do right now: i do one jump and as so as my front leg hit the trampoline i bend it then force my back leg so try to come over. then when i try to keep my hand off the ground they go right down! :*( its rlly frustrating! well i down get how when my back leg comes over, do i force it or let it come on its own?? an HoWWW! am i suppose to jump upwards with one leg?? also im mad because ive only had my trampoline for 2 week and already know how to do front and back flips and handsprings (and i learned how to do them rlllyyy quick so im mad because i cant get this!!! i feel like im afraid!?? :( so plz plz plz give me GOOOODDD detail or an awesome video! thank u soooo much :P