So long as your channel meets the YPP eligibility and thresholds, you can expect to hear back within a month or so. We review all applications manually and this does take time. If it’s taking longer, it could likely mean your channel is held for a second review.
Sorry to hear you've been waiting so long. Our team doesn't have specific timelines for individual channels. Hopefully you don't have to wait too much longer for your update. Appreciate your patience.