This is an incredible achievement. And you're 13 years old? Very well done!
The core concept is simple and solid. I think the controls are a little more complex than they need to be. WASD movement is fine, but I don't see why the nozzle can't always face the mouse and have the mouse button toggle the blower. That feels like it'd be a little more intuitive than holding the mouse to click. I ended up just holding the mouse button the entire time. The level design starts off solid but seems a tad repetitive with a lot of the same maneuvers and traps used. The pieces of paper getting stuck against the wall was ultimately the reason I gave up on level 6. It wasn't a challenge so much as it was a chore to tediously nudge them out. Maybe some collision on the tip of the blower might have given player a chance to dig out stuck pieces more easily?
I say all of the above because this is a great jam entry. The art direction is wonderful, the gameplay is solid and unique, and it feels really polished. Great job on this!