I like how you weren't disappointed that it was only one Bitcoin you purchased back then and not more. When was it and how much fiat did you fork out if you remember?
I remember getting intrigued very early on around 2010 when I first downloaded and installed the core and only because I got distracted and/or found it difficult to find out how to buy Bitcoin with AUD, I gave up and forgot about it.
But to answer your question, all depends what you're prepared to risk. Low risk option is always put it on a trustworthy exchange in the funding wallet and collect interest from traders who will borrow it for margin trading.