You may not have enough *public* watch hours to be eligible for a review at this time. The number you see in Creator Studio shows public & private combined – you need 4k public hours alone. You can try switching private videos to public: https://yt.be/help/YPP-review
Sorry to hear you've been waiting so long. Unfortunately, our team doesn't have specific timelines for individual channels (thanks for understanding). Hopefully you don't have to wait too much longer for your update.