Goji is almost three months old! Is he too small?

Ive made a few posts of this little guy now, so perhaps i just need some reassurance that im doing okay with him, but i cant help but feel that hes too small 🥺 ive seen other pictures of peoples 3 month old babies being nearly double the size! Hes a good eater (crickets and fruit flies) and i mist him three times a day… hes about 4 inches long (give or take) from head to tail. I posted this same message in r/chameleons as well