What if the next bull run never comes?

As the title suggests. We’re all expecting a big run up in the months after the next halving, and the general consensus for the next year or two is pretty optimistic. But what if that never comes?

With all the talk of four-year cycles and an inevitable bull run, I’ve been worried that prices just stagnate or slowly downtrend for the next 3-5 years (or even longer). If that happens, would you keep buying and accumulating, hoping that things pop off eventually? Or just cut your losses and move on after some time?