Yes, it's fine to have a small position with some spare money; over 80% of people are losing money.

Do not trade contracts, especially for those who are in debt and using credit cards for borrowing; they should avoid contracts entirely, as the probability of liquidation is 99.99% and the probability of profit is 0.01%. If you think you are part of that 0.01% who make a profit, then you don't need to trade contracts; just go buy a lottery ticket to achieve wealth faster! One should have self-awareness and not be blindly arrogant! Also, do not believe in those so-called masters or expert traders, unless the money you are playing with will not burden you and you can afford to lose it!