I think you only need to invest in altcoins that are registered in CMC or in the top 10. like Ethereum, EOS, BNB, and Tether. yes it is my favorite altcoin that I still maintain for long-term investment. maybe you can try investing in it
This will not save from losses when the trend changes to fall. It's better to use altcoins for speculation, and to fix profits in Bitcoin. It's the best strategy for next year or even two