Live in the present

Do not boast about tomorrow, for you do not know what a day may bring.

Proverbs 27:1

Talking about what you think will happen distracts you from what's happening now.

Worrying disengages you from the present.

Most things we worry about never happen or happen differently than we imagine.

Nothing is wrong with success. Nothing is wrong with dreaming big.

The problem is when we brag about good things that have not even happened yet.
This leads to presumption- presuming success for ourselves.

The problem is that in presumption, we fall out of God-reliance, going to self-reliance, and in danger of delusion.

Only God knows the future. You can reach out to God, who holds the future, in the present.