It’s OK to say “goodbye.”
All things end.
Relationships fade; people move on; even your goals can change. There is no shame in saying “goodbye” to what no longer serves you.
“What am I doing that is no longer moving me forward?”
Then decide if it will be worth the effort to continue with it.
If the answer is, “No,” bid it farewell. Do it with dignity and forgiveness (if necessary).
If the answer is, “Yes,” take joy in what it brings.