Lack of art

I am very sorry for the lack of art recently. I just don't have much inspiration to draw more art. It's kind of bothering me because I love to work on my drawings and without motivation, I can't seem to draw much like I used to. However it is getting a little hard for me to continue on making art since I am having trouble trying to do shading and lighting. Lack of motivation and stuff. This is also why I am having a real hard time trying to get designs for characters I haven't made yet. I need to work on a few of my characters that don't have ref sheets yet or there ref sheets need updating. I just CAN'T DO IT! I don't have the patience.