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.
If you intend to invest your money on Bitcoin then the best choice is to buy low and sell high that is the only method I used ever since I am involved with cryptocurrency. Yeah Bitcoin has became a new form of investment more than the original purpose which is a new form of payment system. Either way will work fine so it is up to us how we use Bitcoin.