I broke a promise with a terrible condition. WIll Allah still forgive me?

During the holy month of Ramadan, I had sinned many times, and I really regret it. I promised Allah that I would never sin again, but I broke it. I apologised to Allah too. I couldn't control myself. One time, I made a promise to Allah, and I said 'Allah, if I sin one more time, you may never forgive me, or listen to me', and I broke the promise. I made the same promise, and broke it again. Astaghfirullah I'm so scared. Am I doomed? Will Allah still forgive me and listen to me? I really regret making that promise and I sincerely regret breaking it.