How do I fix this jump?

C3/Mobile Game

The player needs to jump on boxes that are moving up and down and then should automatically bounce off in whatever direction the player is pointing. If the player misses, the game will start over.

At the moment, the jump itself needs work, haven't figured out how to get it to bounce off the box yet, but worse, when the player jumps on the block, the player sprite first goes through the box and then comes up so it's on the box.

Anyone know how to get the player to land on the block without going through it?

Thanks.

Kinda hard to understand what exactly is happening without seeing it firsthand.

WackyToaster, first I took what I learned from you and then I combined it with what I learned from bigcatrik and then I blended it with sprinkles of what I have learned from several games I've made and MacGyvered them all together.

It's what I do. I create 20 to 30 little demo type things to work out what I want and how they'll all work together and then I build the game. It takes longer, but I learn a lot.

This is my 'working out the jumping' demo:

drive.google.com/file/d/1g_tTR6HMsDrmSVneHAuZQ5w02h1RQRDX/view

PS please don't mind the sprites. They're just stuff I take off my hard drive.