It took me a while to get used to it, but I think I got a kick out of it when I did. I know a woman, a cis gendered woman, who didn't like her name and thought her name was awkward so she just began introducing herself as someone else. Now, it's what everybody knows her as. That simple fact blew my mind so now introducing myself to others I just use the name I prefer.
Sometimes it's a hard habit to kick, but you can call yourself whatever you want and people generally won't question it. The legal issue gets me more but when I have to enter it I make sure it's my business and no one elses. It still makes me feel a bit sick, but I do prioritize. Something going to the college records is treated differently than signing up for a mailing list. I s'pose we just all have to cope until we can get our names legally changed...