Investing in any emerging technology that obsoletes previously used tech ends up profitable. Think cars vs the horse and buggy, or Internet retailers vs brick and mortar. The bigger the business the new tech displaces, the more value can be captured in the transition. Only there's literally no bigger business than central banking, so Bitcoin is more value accruing than any previous tech shift in history.
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I built a cashflow machine first e.g. a profitable online business, before buying bigger amounts of btc. I could have invested into btc ealier but wouldnt have had the same cashflow. I was able to achieve this after 10 years of experience, now i can buy more btc than i would have been to buy earlier. Plus i didnt understand bitcoin enough. Building my cashflow machine required less than half a salary in external costs because i build most things myself. With chatgpt building tech stuff becomes even easier.
I would say, study bitcoin, stack small amounts, try building a cashflow machine without using much capital. Learn ad many skills as you can, to be more independent and save on capital investments wherever possible.
B2B is better for that than B2C.