Although I have stopped trading futures I would still like to share my experience. I used to like trading futures on altcoins which had low price like FTM and SRM.
I used to have 5x leverage and used to patiently wait to hit targets but eventually made losses.
I learnt a hard lesson that trading futures is not for me which is why I stopped futures.
Low marketcap coins are very dangerous, using it for future trading will be riskier, theower the altcoin marketcap the lower the chance getting liquidated early. No small coin will be available for dutt trading but I understand you very well by still comparing the coins as low marketcap.
Using 5x can be very risky too, I use 3x and it is still risky, my funds are not getting liquidated but I do close the market myself after losing to some certain extent, but liquidation is still very possible while using 2x, the best is 1x.
Lastly, it is very better to quit trading future if your continually losing.