This appears to be the second major collab of yours to actually gain traction (and go on the Calendar). and you've stated that it is NOT a low quality collab. However, out of the 5 entries I've seen, 3 are low quality, and 2 are ok.
If you have to claim it's going to be a high quality collab, it probably isn't.
To keep it short, you're not a good artist, you're not a good collab host, you suck at planning, and you likely don't understand what makes a good collab... well, good.
You released 1 collab, but ALL the scenes were crap. The other collabs were poorly planned out (first impressions matter)
In terms of your own solo output, all your Movies, Art, and Music frequently dip below 3 stars.
Given your track record, your pool of collaborators would be very limited. Either they're small beginner artists only slightly better than you, they're viewing it as an afterthought, or they take pity on you.
it's never too late to give yourself proper experience as a solo artist or a collab host. The journey may be slow, and there may be a few roadblocks, but it's possible. Try to give yourself 1-2 years of practice before attempting another collab.
Even though I'm a very frequent critic, I'm actually going to submit something for once.