I just get really anxious

Not dwell on it. People can surprise you in good ways. Have faith and hope that everything will happen the way you imagined it. Trust gut feelings.

I processed with caution and kept a close on him

not sure

It's depends what I wrong about but mostly I rather fixed it

The one who does nothing is not mistaken.
But my credo for life: "Better to do it perfectly, but never, than somehow today" :)

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Translation in English could be not correct, but in Russian this phrase sounds good

If me are wrong, I will get up automatically

Conquer the fear

I just deal with it

I’m usually never wrong lol