I am sure you know your own mind best. Your beautiful B&W still life photos still have pride of place on our wall, and always will. You are a very capable and talented photographer, and your work inspired me to take photography up again.
May I suggest, as others have done, that you don't give it up completely? Try a different aspect - I have a feeling you would create excellent work whatever you turn your hand to. Try film, try infra-red, try portraiture...
Whatever you try, I'd be very interested to see the results!