The worst height to be is the one you don’t want to be.
If you’re 5’4” and became 5’7”, I’m sure you’d be ecstatic at being. I’m 5’9” so I’m around that “two inches taller” threshold you mentioned, and I’m out here looking for 6’0 to 6’2”. There are people on this forum who are unhappy at 5’11” or 6’0”. There are also people very happy who are now 5’6”. It’s all about where you are now, where you want to be, and what difficulties you are facing in your own life. I’m not personally offended, but it’s a bit cruel to come on here and say that your perfectly average, possibly slightly below average height is “terrible” when there are other people dreaming of being that height. It’s not the best height in the world, sure, but it’s far from the worst and definitely doesn’t preclude you from having a normal love and social life.
I would say that shortness becomes more difficult (as a man) when you start becoming shorter than a large number of woman, in my opinion and experience. Even then it can be totally fine if the person can power through height neurosis, or if they don’t ever form it.
Regardless I hope you end up at a height you’re happy with one day
we’re all in this together!