for you to be able to sustain and survive this unpredictable market.It wont really matter on how big your capital is because the number or size of position on each trade is the key.
Also with that risk management factor thing is should be mainly considered.
Even if you do have small amount of capital but you do really know on how to withstand this volatility then you do beat up those fellas who have big capital
with less trading knowledge.
If we compare it, let's say trader one has a lot of capital but lacks knowledge, and trader two is an experienced one; most of the time, trader 2 would win trades but make small profits, whereas trader 1 would win a single trade and make a large profit. I am not saying that lack of knowledge is better, but with big capital, you can maximize the profit per trade. The size of your position really matters most since it will take more time to gain enough profit to hit your target if you set it in low.