For spot fixed investment, you must choose currencies with high consensus, high liquidity and high trading volume.
Try to choose the top ten currencies in market value, with high liquidity and high stability. Even if they fall very sharply, they will rise back later. There are thousands of tokens on the market. Don't mess around and choose currencies without liquidity. Even if you bet right once and make a lot of money, can you ensure that you bet right every time on the rise of altcoins?
The current market is not as good as the previous market. You can make money by buying them casually. I have also lost a lot of altcoins myself. There are several that have not been cut back to zero. Even if the bull market comes, altcoins without liquidity will not be able to turn over a few times, because there will be many new altcoins of the same kind online, so playing altcoins is speculation rather than investment.
I have suffered a lot of losses, so I am here to tell you not to buy altcoins without liquidity. Even if you buy them and feel something is wrong, you must stop the loss in time, otherwise you will not be left with anything.