Yes, many people doubt that the level of success is actually determined by large capital, but what I try to maintain myself in is to be consistent in investing so that even small amounts of Bitcoin are accumulated in the portfolio.
It's a thinking style of losers as if they can not succeed with small capital, how would they succeed with bigger capital?
It's impossible as managing a small capital is more easily and less stressful than managing a big capital. With same strategy, you would feel more comfortable with a small capital rather than with a big capital. In other word, to succeed with a big capital, you must start and gain success with a small capital for a long time. It gives you precious experience and sharpens your management skills so that you will have higher chance of succeed with bigger capital.
If anyone says, "Give me a big capital, I can succeed with it". It's dangerous calling and smart as well as careful people will never give anyone a big capital with that promise without any evidence of success from previous capital management of either small or big capital.