Thank you for playing! There is already a button to restart the level and also one to skip it if you pause the game by pressing escape, I forgot to mention it in game but I put it in the itch page!
Oh, my bad that didn't realise that there was a restart at the pause menu (maybe explicite that on the itch page, it only says that you can pause but I never felt the need to do so, so I didn't find the restart button :) )