You always have a lot to do, but....
You have absolutely NOTHING to worry about!
Worrying is a total and absolute and complete waste of time.
It won't solve any problems, make you any smarter or help you accomplish anything in addition to what you're already doing.
Solve what you can, do what you can, be proactive and all that...
BUT DON'T WORRY!!
Don't obsess over what should be done.
Don't dwell on what you could have done better.
And certainly don't let those worries keep you up at night, interfere with your life's enjoyment or hinder you from pursuing your dreams.
Think, problem-solve, stay on top of things as much as possible, but DON'T WORRY!
You have a lot to do, but absolutely NOTHING to worry about.
It's ineffective, a waste of time and a waste of a good life.