I reached the point you’re at 6 months ago. I needed 125 celestiais then, now I need 86.
I’ve completed dungeons every almost single day and crafted all the celestials that I can in the soulforge. (Though I have also crafted 3 mythics, 1 legendary, no weapons)
This means that, between the new troops that required celestials that have been added, and the ones I get from dungeons and random drops, I’ve closed the gap by 39 in 6 months. So I’m looking at about a year until I reach celestial freedom.