This! ^^ As someone who is currently redesigning my island from the ground up, I understand this can be difficult to do. But what I’ve found that helps is definitely doing little by little. And once you’re happy with that tiny bit, you’ll find you’re less intimidated and overwhelmed as you move onto the next bit. At least that’s how it worked for me. Don’t rush yourself and take your time. Currently I’m at 10+ hours of terraforming and I’m nowhere near done.I feel that way sometimes too, the prospect of redesigning my island from the ground up has been quite daunting to me. My advice would be just to do a little bit at a time, don't try and do a ton in one huge sweep. It's always something you can change and improve on over time, so if it doesn't look great on the first attempt, you shouldn't stress out over it or compare your work to others in a negative light! All you can do is practise and try your best! :3
I'm having a really hard time smoothing corners or making them round instead of square. I
Really glad that I stuck to it despite of how uncomfortable it made me at the beginning.