Before you talk about capital then ultimately you have to look at yourself in this context your readiness whether you can or not to trade.

If indeed you can do it even for a smaller capital than that it will be very enough but if you only make instincts as a benchmark that bitcoin will go up or down not just 1 million even 10 million of your currency will not be enough for your trading.
Because what? Because you only make instincts or even look for them traders share signals without knowing what you are doing and just entrust yourself to others.
Maybe in this case there will be an excuse for the learning process, it may be good but in the end this can also be refuted because being in trading is not as easy as imagined considering it takes a long time to learn this and of course things like this are not worth it if it is just said to be just trial and error.