Here is a list of the different crypto investment strategies. I noticed that these strategies are used by those traders who have been in the cryptocurrency market for a very long time. New traders start to panic and not stick to this or that strategy and their balance tends to zero.
I check the link and I think most of it are not a strategy but just a basic guideline here in crypto. If there are few on your list that I think a real strategy I think that are the DCA and riding the wave. Those who are in the market already for a long time already know most of those things.
For the newbies it's okay if they cant follow all what is written but they can start on the very basic first which is securing asset storage. We should not easily blame our strategy because we think that it wasn't working but we should remember that the outcome that we will get is also depend on the coin that we choose. A working strategy can fail too sometimes but let us not panic and let us not change it for a while.