First of all, congrats to you! At your age, I didn't do anything useful with my time. And you made a complete game in only a month. That's impressive.
But even putting that aside, this game is really impressive. I wonder how you did the procedural generation of the levels. The music really fits the game and I didn't get tired of it looping.
I also had a lot of fun with the wall jump
My only issue was that you cannot replenish your health. I couldn't finish the game. I just wasn't good enough.