Hi Gents, i had this problem when i first started. What i found helpful was two things. The first is to try to turn the board upwind as you jump.
Keeping moving is all about the kite. if the kite is stationary above your head or heading backwards when you land you will stop. jump as normal but as you land steer the kite back down in the direction you are traveling in, as you land the kite will kick in again.
I hope that makes sense and helps a bit
Good luck