Suit yourself, but it won't change the facts.
Sick and tired of hearing that "markets change" routine.
How long have you traded? I don't mean putting a few trades on here and there but significant sample sizes.
Since you registered in 2020, it is a relevant question.
In my case one of my strats had severely diminished profits, it seemed to have gotten crowded. It worked well for 20 years or more and this year had record drawdowns and hasn't bounced back. The only thing that saved my case were modifications done late last year. And no, it's not long-only, it has short bias.
Markets change as opportunities get crowded. This is true for absolutely anything to do with supply and demand, it's true for all of history as well.

