This tapestry is kicking my butt

I'm in the process of crocheting a corner to corner tapestry and this thing is already MASSIVE! I'm only 77 rows in and it's making my arms hurt trying to finagle it. Right now I'm actually weaving in the ends from the color changes because if I don't do it now, I will not do it later. It's like I'm punishing myself for making progress on the project lmao. I now have a callous forming on my index finger from all of the sewing I've been doing for the past couple of weeks. I WILL crochet some new rows eventually though

Here's one of the last progress pictures I've taken of the front. I'm a good bit further but haven't gotten a chance to take a picture of it yet. It's of the Hannya Mask on Goro Majima's tattoo.