A long-term Bitcoin investor has many dimensions of his personality, such as finding the ideal strategy, observing market volatility, choosing the right time and mastering effective trading strategies.
all these concepts you've outlined doesn't really play a great part in your long term investment, they might be necessary in some instances but you just have to have basic knowledge on them and proceed to investing without necessarily being stuck with them. For instance,
Finding the ideal investment strategy doesn't require much time to identify one and like it's been said over and over again, starting off with a DCA amount is a good way at the entry level and even when you've stayed long, you will still discover that buying with the DCA methord is still the best way to go.
Volatility is a nature of Bitcoin so you just have to come to terms with the fact that thier will by different market conditions at different times but those are not reasons to slow down on your investment or try timing the market for best buy period.
mastering the best time to buy is not something anyone can assume to have known even if they've stayed long in the Bitcoin ecosystem. The market is not one that's fixed by anybody so the best speculation might end up being false which is the reason why the DCA method helps conquer those kind of stress.
Trading should be totally out of the plan as long as you're investing for the long term except you want to remain almost stagnated for a long time.
The simple and most important routine is to set up a DCA plan that incorporates a place for an emergency fund and ensure that you stay disciplined enough to follow it up to the latter. The rest of your decision will come along your investment journey.