Describe one personal habit you want to develop to improve your life. How will you achieve it?

I want to have a habit of thinking lightly to improve a = the quality of my life.
It is greatly important thing to healthly live because it decreases our stress. = It is very important for living well because it lowers our stress.
I think about = of myself as a person who worries about very small things.
It makes me uncomfortable and bothers me every moment.
But any unfortunate events aren't realized usually = usually realized.
After that, I make = made myself a promise to don't = not to worry again. / After that, I promised myself not to worry again.
This promise dissapear = disappears when I face tiny worries.
I know these whole processes, which make me worse. = I know all these steps, and they make me feel worse.
That's why I try to change my bad habbit as thinking lightly about problems = habit of worrying too much about problems.
If I worry about something, I should ask myself, "Is there any evidence of it?". = it?"
Of course, there isn't any evidence of my anxiety.
Then I should think that I must believe in the objective fact. / Then I should remind myself to believe in the real facts.
It leads me in a way that doesn't making = make an unessential concern.

Thank you for reading.
I hope that I realize my answer!
See you tomorrow!