You are not the only person who regrets not being able to hold on to Bitcoin early. I also had a good amount of Bitcoin at one time but I couldn't hold on to it. It is natural to regret that time. I knew a lot about early Bitcoin and I transacted a good amount of Bitcoin but at that time I didn't think about 2025 or 2030 what the value of Bitcoin would be at that time. I sold them according to the value of Bitcoin at that time and spent it in various ways. When I think back on those fucking days, I get very angry with myself. If I had the Bitcoins I had then, that amount of money would have changed my entire life and I could have spent the rest of my life in retirement from now on.
Many people took Bitcoin for granted because they never knew it would be this valuable, and it is nobody's fault because when something is new, it won't be taken very seriously. Even after a decade of Bitcoin's existence, many people were still not sure about it; whenever Bitcoin is in a bear market, people always feel that it is the end of Bitcoin.
Since I didn't take Bitcoin investment seriously during the early days, I won't bother myself because, in life, these things happen. The most important thing is that Bitcoin still exists, and I can still benefit from it. If the potential of Bitcoin were only for those early investors, then this would be a time to regret; but as Bitcoin is still beneficial to everyone, the best thing is to invest an amount of Bitcoin that you can afford.