One solution is to ask friends and loved ones to tell you how wonderful you are. And they likely will. Only that doesn't really help, because deep down you are a better judge of your work, and the things you don't like about it are going to vex you now matter how many there-theres you hear.
Another is to decide to eat worms, i.e., declare that, having written/drawn/played the worst piece of roach excrement ever to be passed off as art, you will forever forsake the work.
Yep. Do that. Then count on your elbows how many people beg you to please, please, please continue to create.
No. These are not the two ways. The two ways are this:
1. Keep doing the work with focus on improving the skills you think you lack.
2. Use the better work you see/read/hear out there in the world — which, by the way, is indeed full of people whose skills are more refined and whose inborn talent might in fact be maddeningly and unfairly more generous than yours — use their work to study. Use their work to inspire you.
Those are really the only two things I know that chase the wolf from Grandma's bed, so to speak.
Despair still mounts ninja attacks on my quivery little soul. Usually I have to flail helplessly back at it for a little while before I remember that the despair-killing antidote is tucked in my pocket, and that I have only to reach in and remember: Stop wallowing. Do the work. Study to improve.
That is all I know today.