We all have different strategies on how to become successful in Bitcoin investment for many years, if your strategy works for you then you should stick to it, what matters is that you are consistent. It takes money to buy Bitcoin so a major key for me is that I should have source of income and have discretionary fund where I get money to buy Bitcoin consistently, secondly I should know how to protect my wallet security. If you can get it right in these two aspects you will go very far and achieve your aim of long term investment. Money and security are essential, understand financial management so you will always make provision for buying and be security conscious not to lose your wallet security.
The main thing to have when you want to start investing in bitcoin you need to have source of income if you want to enjoy your investment in Bitcoin and you need to have believe and get some knowledge and experience on bitcoin before you can enjoy it and gets some benefits in it, if you don't have knowledge you will always struggle in it and make things hard for you.
You're right is not about investment only you need to secure your wallet well when investing because if you didn't secure your secret phrase you will later regret and you can lose everything if someone have access to your wallet so anything you're doing you need to be wise so that you won't lose anything. And another thing is that bitcoin is not a short term investment that you will think you can be profitable so easily you can probably face some challenges but if you can be patient enough and invest for long term you can probably be profitable in it.