I don't think I'm gonna make it

My lil project, i’m in the middle of is a blanket. I'm trying to do a twin size one made up of a bunch of granny squares. I thought it was doable but I used one of those online calculators on how many I would need. It said 68 width ×90 height! I only have 28 so far and it's supposed to be done for her birthday, which is the 27th. I dont think imma make it

Because I still have to join all of them together. Pray for me😣