I'm not sexually satisfied should I leave my 9 year marriage

I have been with my husband 11 years married for 9. I'm going to make this story short as possible. But for over 4 years now my husband starting completely turning me off. It was a mental shut down for me. I completely became unattracted to his mental state of mind about things, life and growth. and honestly I think I outgrew him. Now my husband loves me very much and worships me. He is a awesome provider to our family but the income isn't stable meaning at any point it could go away and there is no back up plan on his part. I'm convinced that he is not focused enough to have a successful back up plan. It really seems that he cant do anything without me. I have several business I run myself so babysitting him is hard, and through the years I've taught myself everything I know. Through my growth process and him not applying himself to anything growth wise. I gave up. So mentally I lost interest and Sexually well I think I was just accepting of the fact I had a good faithful man who provides unselfishly and I accepted the mediocre sex from beginning. But now I'm completely past it and I think the mental shut down now along with the not so hot sexually life caused me to have a 3 almost 4 year affair where the sex was amazing and we connected mentally. But then he died the person I was having the affair with passed away which left me grieving, lonely and miserable. Not to mention my body NOW yearning for what we had that I'm now missing even more. Now I had not really cheated on my husband before. Except this one period of time where my husband was away for 18 months within our 1st year of marriage and I met a younger guy 9 years younger to be exact and we had a brief affair. No intentions at all on leaving my husband, this was just fun. However, it was one of the best sexually experiences of my life. Sooo good that it went on for awhile and I actually got pregnant. Now don't judge me. I said I had no intentions on leaving my husband. So having this child was not an option for me. I handled that situation and got out of it. It took along time to get him out my head. I never really did. Ironically this guy contacts me out the blue but literally the same week that the person I was having the affair with died. Of course I was in no mental state to respond to him at all. But after months of grieving and my body and mind having withdrawals from my friend that passed away. I reached out to this young guy. A lot more mature now of course and remember defiantly one of the best sexual experiences of my life. So yeah he helped me grieve. Because I was literally a mess. But remember I told you we made a baby, well there was defiantly love there. The 4 year affair I never had intentions on leaving my husband for him. Now I was ok if It came to light then I would deal with the consequences. But it was never a plan with this guy even though he wanted me to himself. But NOW my young guy is in love I feel the same way. The butterflies, the chemistry the everything, its all there. He is just not in position to provide like my husband does. However, I'm financially secure. Bottom line Is I have been mentally and physically checked out my marriage for years. My husband is a good person all around. I don't want to hurt him but I'm just not happy mentally or sexually, but I am happy with his recent financial gain that he has had. And he is trying everything in his power to not lose me. But I feel I'm already lost and I don't even know how to come back. I'm so Confused but not really. I really want to be happy I want the feeling. And its just not here anymore with him.