Please let me know if you have any tips for doing nails at home.

I've been spending more time at home lately.
As a result, I didn't go out to take care of my nails, so they grew too long.
It’s not pretty, so I want to try nail art at home.
Do you have any tips for doing nail art at home?
How to learn basic nail art techniques, including what tools or materials are needed, or
Please let me know if you have any tips.
I would like to decorate my nails nicely. Could you help me?