At a concert the other night, I ran into a number of guys who were significantly shorter than I am. Some guys are just short. And it's common for men to worry about their height. All the same, short cis guys don't have all of the other trans crap to deal with. For us, many things get blown out of proportion, and many feelings are heightened. Just recognize that there ARE a lot of shorter men out there who DO come to terms with their height and DO live happy lives, and you can be one of them if you hang in there and try to weather the storm. Eventually, you will likely care less and less. Hell, I was worried about my height while I was early in transition, and that feeling passed after I acquired more confidence--slowly. I do have the advantage of being a reasonable height for a trans man, but I was still obsessed. And now I'm not. I would love to be taller, but I'm not. I am who I am, and my confidence comes not from being as tall as I am but from WHO I am.
Give yourself time, and actively tell yourself that your obsession can pass and that height really doesn't matter all that much.