Advice :- If you do not know what you are investing just keep away from it.
Instead of cardano just look at ARB, SUI, BNB
For now, Cardano (ADA) is lack. For now, price still $0.5 - $0.55. But, I don't know in future, if OP need for short profit, please leave it ADA.
For ARB, or Arbitrum for I think still has high feeeven if you have Eth Layer 2. for Sushiswap (SUI) it's a completely open market where any two tokens can be traded without going through a third party. More and more people are starting to see how useful DEXs like SushiSwap are as DeFi gains popularity. I think interested for this. I agree, and I now invest BNB to harving day. I choose it because lower trade fees.