How much Cardano should I own?

I've been hearing a lot about Cardano lately, and I'm curious about how much of it I should consider owning. Could you help me understand the factors that I should take into account when making such a decision? Is there a recommended allocation percentage based on my portfolio size or risk tolerance? Or should I just go with the flow and invest whatever amount feels comfortable for me? I'm a bit overwhelmed with all the information available, so your guidance would be greatly appreciated.