“I call myself a designer but people are looking for UX designers so I still have to put on the UX mask and call myself UX designer as well because I still need to pay the bills”

Wear the label the buyer searches for, even if it undersells you

Nick calls himself a designer but lists as a 'UX designer' because that's the phrase clients type into search. Name yourself with the words customers already use to look for the thing you do, not the internal label you prefer. The aspirational label can park in the sub-headline; the buyer's word goes in the H1.