I do not think that only having a good capital enable us to earn a good amount in trading. We can even lose our capital if we are not equipped with proper knowledge in trading. It is the skill and knowledge that matters. Even with small capital if we have those we can earn and be able to make our fund / capital increase.
But here considering trading for making 1 bitcoins within one or two months may lead to disasters. Because trading will never work when we are targeting some profits like when we are target some money from it, we may get into wrong positions. But trading should be done only when we do find opportunities. We must wait for good entry points to trade otherwise hitting stop-loss may occur.
Trading is a good way of earning but it will not work under pressure of setting some daily/monthly targets.
Trade in general is very specific earnings and not everyone can do this business. I do not have much knowledge of the intricacies of this process, but I think that one Bitcoin is for trade and quite suitable capital for a beginner.