As I relayed to Tucc, sagely, in the Instagram comments: Don't assume that you'll like the same haircut on yourself at 45 that you liked at 38. You cannot go back in time! Shout that one out from the rooftops.
p.s. This applies to more than haircuts, fyi.
p.p.s. Like all great things in life, this lesson was free (for you, I mean. It cost me literally hundreds and hundreds of dollars.).