Given the background of making this game and the previous comment, I will only make a couple basic feedback mentions about the game but my condolences to you and I wish you well going forward.
I kept playing until reaching level 60 on all 3 tools. The game starts off fun but slowly turns rather frustrating as the physics for your tools makes it go straight up regardless of angle or momentum when it hits a block , meaning after finally reaching bedrock you could hit one extra block and find yourself at the start again. Would be nice to see some tuning for this.
Tool-wise, the hammer is very lacklustre, the aoe for the explosion is small which makes it rather useless in the end.
I won't comment on the art, however the background is rather low quality compared to the rest of the textures.
And finally, the "watch an ad for x3" isn't consistent whether or not it appears, but also odd to see it in an itch.io demo.