My thoughts on this are complicated.
On one hand, if I were never trans I would never have understood systemic oppression as well as I do. I can understand some of the struggles that women face physically and socially even though I am not one. I'll be able to tell future generations about existing as a trans person in this important part of queer history. I also have the experience of living as both genders physically and socially, which is an experience the vast majority of the population will never get.
On the other hand, I wouldn't have wasted as much of my life if I had been cis. I probably would have still struggled with depression and anxiety, but wouldn't have lost all of the opportunities that I did and isolated myself because of being trans. There's also be less future health problems to deal with if I were cis. It's still unknown what a lot of the long term affects of testosterone are for trans men's bodies, but it's possible it can increase the chances of getting reproductive cancers in addition to the increased risk of cardiovascular events and heart disease. You don't come across many old trans men compared to trans women. There's also all the surgeries and general stress of being trans in this day and age that can't be good for the body. I also probably would have been screened for ADHD much, much earlier which would have made my life a lot easier than it turned out to be.
I do wish I could be cis, but it is what it is. I'll never have a body exactly like a cis man's and I didn't get the adolescence I should have gotten, and I've come to terms with the fact. Gotta come to terms with what you've got and see the benefits.