It totally depends on your ROI expectations from it.
There are 2 types of investors. One who invest for short or mid term and other one are who invest for long term.
If you are satisfied with 50–100% returns then set a bid of that amount and leave it. If you want to invest for long term and want to gain whooping profits then leave your bitcoin in secured wallet and forget it for years.

If you have invested extra bucks in bitcoin then you would never regret of loses. So think well decide your ROI and act like that.