Maybe you picked it too soon! It has to get almost white and the inside looks like thin greenish colored spegetti. Some insides look like a yellow white. Bake it or cook it in a microwave with a chnkm of butter. i like garlic salt on it! Siome people put spegetti sauce on it! It should not be bitter nuless not ripe enough! The seeds sometimes tell you how ripe itis if they are large like a pumpkin seed. If the seeds ae small and soft its not ripe yet! I even let them mature after the vine dies!
I enjoy fishing ,gardening and a solar greenhouse! carpet installation repair and sales for over 45 years! I am the inventor of the Bobber With A Brain - Fishing Bobber!