What every plan should look like for each investor should depend on their goals. However, I consider buying through DCA as the best method for now if the goal is to hold the investment for a longer time. This is because the price will go down and will also go up from time to time, but it mostly goes up in the long run.
DCA never gets old and it's the strategy that the majority of us is aware of. What we need to plan is to get on how long we're going to hold the bitcoins you've bought. If you have no exit plan, that's just fine and you can get some portion of it when you want to and sell it at your will if you need some extra cash for some purposes that you need to spend it.
This is why I stick to this method.
Good, and that's not just you but most of us.