is a habit. If you find yourself always busy, always at your wit's end, never able to devote the time or resources to do anything properly, you've probably acquired the habit of taking on too many projects.
When you take on too much, no one can blame you when you fail, no one can blame you when you don't create quality work. You were busy. No one can blame you.
It's better to spread yourself thick. Quit something. Quit something again. Take the time to really do things right, even if you do fewer things, even if it means you don't have plausible deniability.