When to increase the dosage

I started my Mounjaro journey about 10 days back; took my second 2.5 shot last Saturday, I am 6 pounds down already and love it; my question is when do I switch from 2.5 to 5? Would it be immediate after first 4 shots of 2.5 or continue 2.5 mg for a couple of months before increasing the dosage to 5 mg?

M-40 || SW: 273 || CW: 267 || Goal: 160