Can I purchase my own cloud storage?

Good day, I'm curious about the feasibility of owning my very own cloud storage. Is it actually possible for individuals to purchase and manage their own cloud storage solutions? If so, what are the key factors I should consider before making such an investment? Are there any technical challenges or specific requirements that need to be met? Additionally, how does the cost of owning my own cloud storage compare to using existing cloud services? I'd appreciate any insights or guidance you can provide on this topic.