Now is the best time for you to become a trader , because there are many starts up with ICO and all of them are looking very potiental IMO . So they could lead you to the rich way maybe if you're choosing the right one.
Best time to become a trader is the fluctuation times because you can make fast profits during fluctuation periods. If the market is stable in terms of price, making money there is only for professional traders.
Although every time is the best time to become a trader, but still it is depending on your experience, if you have good experience in trading then it is the best time to become a trader, because trading depend on your experience and your trading skill. Which you can only get through spending time in relevant field.