Garbage coins should not be touched, unless you're just playing around with a few dozen or hundred U, and your purpose is just to gamble for fun. The original intention is not stable profits, but to take a chance and play randomly. Besides mainstream coins like Bitcoin and a few popular coins that can provide stable returns, 99% of others are just meant for cutting down investors. The simplest point is that the lower the market value, the more absurd it is; basically, it ends at issuance, and once you buy in, you're just waiting to be harvested, with no technical aspects to speak of.

A steady, gradual approach is the norm; stable and continuous profits are the way of investment!