Bitcoin investment doesn't require much just
1. Patience
2. Available funds (not huge but steady)
3. Positive mindset (strategy included)
There are more but I think all fall under these three .
These are definitely one of the strategies to hold Bitcoin investment, here are some more strategies you can add. Since it is better to hold bitcoins for a long time it is better to use a wallet that is strong. The longer you hold bitcoins, the more you will improve and the less risk you will have.
Bitcoin investing usually involves the greatest tolerance for risk, so these two factors play the biggest role in whether you invest for the long term (strong wallet and risk tolerance). So surely a person following a standard DCA system should follow these mile boards.