Does anyone know if it’s possible to move my topclamp on fox 40s up to make me taller on my bike

You should look into riser handle bars. Without seeing your fork and front end with a stationary up close picture it is tough to say if you could make it higher, but regardless riser bars would be a better solution in combination with moving the mounts higher onto the fork.

From pausing at a point in your video it looks like you’re close to the top anyways.