As an enthusiast, you would want to learn more about the assets you are interested in;
Check out this articles for information on basics of Bitcoin as well as best security practices;
- https://www.coindesk.com/learn/
- https://cryptosec.info/wallets/

As an investor you would need;
• A tool with which to monitor the changes in the market. For this you could check out https://tradingview.com/ or regular cryptocurrency market trackers like, coingecko or CMC

• Optimum security practice; this begins with a secure wallet to store your assets in. I recommend a hardware wallet like ledger or trezor, ensure you get it from the official website. You should begin to practice safe browsing and be more alert when using the internet, if you chose to be your own bank, you also have to take responsibility.
Recommendation from a forum member;

• You would also need an investment plan, to avoid panic selling or bag holding. Check out this thread - (SSS) - A Sane and Simple bitcoin Savings plan
.
Note: Your plan should be customized to you, take ideas of other as just suggestions.

• It would help to stay ahead of the market, explore changes and updates and decide what should and should not be in your portfolio, this forum can be a very useful tool for that. Good luck!