Please, help

I tried to make a game like “Doodle jump”, but 3D. I create character blueprint class as a player. So problem, what I used “movement input” node to move player left and right, and “jump” node to player jump, but if I changed “simulate physics”, player only jumped, and if unchanged, player only move left and right. How can I fix that? Also when player is falling, he can’t move. This is the problem.

Please, help