Ive tried running it 3 times but mostly ended up with the world being 20% destroyed, got any tips on how to do this faster PS, my hand does in fact hurt

If you're talking about the meme run, it's worth mentioning that a relatively flat world consists of ~450k blocks. If you're able to break blocks at an average of 5 bps (which might even be a bit high, considering you have to move around and keep going for the duration of the run) that'll take you roughly 25 hours.