The sooner you let something go, the sooner you have a free hand to grab onto something new. Let it go, let it be.
We have to figure out what is holding us back, cut the cord, set it all on fire, and move on.
Michael Jordan famously said that being coachable was his greatest talent. Not jumping, shooting, scoring, competitiveness, discipline, work ethic, etc. This means he was willing to let go of unusable stuff and make room for more functional stuff constantly through learning.