You can buy in dip and hodl but you must give it time to grow and maximize profits,should try as much as possible to avoid distress sell when market gimmick is on the high side.

As a bitcoin investor before you can guarantee yourself with high returns from the investment,maybe it is only when you hodl it for a long period of time,so generally bitcoin investments is a long term project.
It is not all the market trends will encourage investors to buy dip,i must say is better to work with price actions rather than waiting for it to dip before you can buy.

Though most of the bitcoin investors feel that only on bitcoin trade one should consider price actions as a strategy to maximize profits,we can still adopt or apply it in investment too.
Learn to understand the market conditions and avoid panic,fears and distress sell because these are the factors that can hinder your investments not to appreciate.