I learned to regulate my emotions, one way or another. Did it possibly (likely?) also have a long lasting negative effect on aspects of my mood, motivation, focus, etc.? I think there's a good chance.
I have lots of problems understanding my feelings (good old alexithymia) and it's always been an struggle for me to understand or communicate how I feel or what bothers me.
I have found in my own life that the practice of emotional regulation has made me a pretty good diplomat in difficult situations. Sitting down, shutting up, and following the rules when I want to yell at people is the essence of de-escalation.
Emotional regulation is a great thing to work with (I should keep on it), but I think it's very important to do it, not like "my emotions don't belong here, I'm not valid", but knowing the differences between different people, learning how different people behave and express themselves, and finding ways of moving your emotions to different places that help you express yourself and transmit your needs. And you don't have to do it the same way than everyone else (that's one of the most important things I've learnt since my diagnose a couple years ago).