Most can look back and second guess themselves on MVNT.
The primary complaint would likely be looking back into 2019 and saying, "Why the heck did I buy so early?" Hindsight is always 20/20, but I'm sure everyone had their reasons for buying MVNT back in 2019.
However, its too late now to go back and do things over again. Who could have known all that has transpired since they first bought in? COVID 19 and a management that is slower than molasses, even though they have apparently done nothing "wrong" so far. Just much slower than most, including myself, have expected.
Imho, there is not much left to do except either sell your shares, or wait and hope for the best. The "best" being the reasons you should have had for buying MVNT in the first place, no matter how early you got in!
All is jmho.