Every time I check which generation I’m supposedly a member of, the random source I check gives a different answer. I definitely identify more with X than any other though.
(Assuming this is you) the boundary between Gen X and Millennials is a bit fuzzy, somewhere around the early 1980s (since inherently generations are marketing terms, sociology mostly deals with gray area). The closest experientially-oriented limits I've seen are that Millennials are old enough to remember 9/11 (born before ~1997) but young enough that the Great Recession hit either before they entered the workforce or during their very early career (before being ~1985, very early career being 1980).