How not to trade

So there is a nice downtrend in BTC and i have seen it on the top.
Opened a nice short position in the top of the trend and started to worry if i am wrong - that leads to stupid mistakes.
One of them is getting scared of small market noise.
Another is not waiting enough for a good entry point.
And that is all due to too much staring in the market - let the market do the job, don't stare at charts all the time!