Help with Jumping small dirt

so recently my friends and I built a small dirt jump and I've been having some trouble with it. Im not sure if its because I was using my friends bike, because its a new type of jump to me ( as in the way its built and formed), or because I'm scared.
I think its all 3, because I've hit dirt well before.but Just cant seem to do it this year

So if you have any tips on dirt jumping for me to keep in mind they will be greatly appreaciated

how tall and long is the jump?

prob liek 3 feet high
4 feet long
not sure off the top of my head

well you wanna make sher the take off isent to steep cuz its not that bike of a ramp and that it is smooth dirt just takes alot of practice the more you jump it the easier it will get

thanks Chris, I'll try to change it a little bit then

also ur gunna wanna make sher the take off is packed very good i recomend using a flat head shovel for shaping and packing

ok
Its built quite well, its on a small hump in the ground, and watered