First rules of the game; Put in what you can afford to lose in case things don't go as planned.  Crypto markets are so unpredictable and very volatile, You can make a lot of profit or lose it in a very short time frame.

If I were you I would keep with the small amount until i master and get used to the movements of the markets. I personally Lost slightly over 10 ETH when i was learning futures trading  but my profit making got better with time.