It could use some work. Like other's have said, prioritise slowing the rocket down and giving more time to see the obstacles. After that, maybe add a score for how long you survive or how many obstacles you pass. Just keep at it.

this game is unplayable. The "rocket" goes faster than the screen.

You know, the rocket goes faster than the level it self, study more, learn to program, and most important, dont give up.

It's kinda like Flappy Bird, but with less information. You might consider showing the obstacles a bit earlier so there's enough time for the player to react

It's impossible to get past the second obstacle. Give the player more lead room to see whats coming, as well as a bit of a start before we need to press space so we don't immediately crash into the ground.