Wait to decorate/terraform?

What did you do with your island? Did you wait until you got more DIYs and more items before you started working on your island?

I want to start but my items are very minimal and I feel like it will be incomplete or I won’t be able to finish it and have to start over due to not having enough items to fit a theme.

Should I wait? And if so what’s the best way to get DIYs? I feel like my villagers are rarely giving me DIYs anymore.