Every day is a new day for trying...a trial and error
This is the best scientific method invented by humans.
But,
For ordinary people ...the terminology is trial and error.
On the other hand, the same method for the scientists who goes into his lab or her office and tries to find cure for cancer; tries for a new technological invention/inovation,  "trial and error" transforms into research...
What a "respectable" terminology...!
I try to encourage my students to dare and to try and not be afraid of erring.After all, that's how you fly...and that's the stuff scientists are made of...