Spots on leaves please help!!!!!!

Hi everyone
This is my first attempt at growing. Im growing outdoors my baby is about 2 and a half months old. Its 3ft tall. But it started getting some brownish color dry spots on a few leaves the only things ive done to it is i put miracle grow plant food on it once a week and ive sprayed neem oil on it twice, i have a couple pics. Can any1 give me some info on what to do please

pretty plant
chill out
you'll have imperfections from time to time
if growth is healthy then just observe
when growth is stunted or abnormal, then act

edit - 1st 2 pics look like you dribbled a drop or 2 of nuted water on the leaf (nitrogen abundance)
- 3rd pic looks like heavier burn - if you had several leaves on 1 plant looking like pic 3, i'd be concerned

Ok thanks for the info bro. So do u think the miracle grow plant food is what made those spots? because thts all ive used. I use about half a gallon evry thursday.