Do your best, learn from mistakes, and enjoy the process.
I'd much rather have a less-than-perfect handmade item than a perfect factory produced item. If you are making something as a gift, and have taken the recipient's tastes into account, I'm sure they will feel the same way.
If you are doing something for yourself, let it be a learning experience and some day you'll be able to look back and realize how much you've improved.