I bought a bitcoin what 0.0003 BTC last year November with only money that left with me when I finished my program and named it investments, many of my friends started laughing that my money has gone and bitcoin will fall and is out of surprised bitcoin moved to 19k, 20k, 30k and 40k, so I'm excited for having double of my btc within some months, I want to know if I will sell it or withdraw it, because is a investment money not for spending.
As an investment, you could try to utilize some of the profits to invest in other Alternate Cryptocurrencies that also has the potential to grow and surpass their current values. That is one way to earn more from the investment that you have made to Bitcoin since its all within a single industry. Another thing that we can do is create a physical business since that we can turn our Cryptocurrencies into tangible cash with a process and then by creating that business we could create more income and its not just from the Crypto Industry.