Just to buy and just to hold seems sensible but too boring...
If this is Bitcoin, then you are making the right decision.
You feel bored because you keep watching the market sentiment, the more you watch it, the more it will tempt you to sell your holdings.
Seeing the market correction will make you panic, which possibly selling your Bitcoin at an early stage or while it is in a correction.
The DCA method is the best option if you want to invest in Bitcoin.
As you have mentioned in the OP, that you are selling and buying again is not a good idea.