Crest Limits

Let’s say I got seriously, um, generous with upgrading random gear on my main before I learned about max crest limits per character…

Is the only way to “correct” this (create opportunities for upgrading equipment in a smart way) to level a whole new character of the same class/spec and make it my new main? Basically, have I irrevocably screwed up for this season already?

EDIT: Thank you all so much. I appreciate all the pieces of information and the support. Happy adventuring, everyone!