Woah that's a lot of risk right there but depends on the bitcoin market it keeps on increasing in price if its continues then there is a posibility that it will reach another all time high (ATH) but that's still an speculations, its up to you if you can take the risk, the thing is futures is that the higher you raise the leverage the higher the damagee will also be get, but of course if you are right then the reward is imaginable, its your call just use the funds that you are ready to lose, it may be regretful for instances but if you are a risk taker then go for it, just remember there's a lot of hype right now in bitcoin so anything that could happen to bitcoin price could be unpredictable, its not too late yes but it still has the risk because you might enter in a peak position then possibility of correction.