Breastfeeding!

I stopped pumping when my son was a month old due to him having acid reflux and an allergic sensitivity to cows milk etc.. he never latched either and he was a preemie. but I want to try to breastfeed him now :( can i still get my milk supply back? He’s going to be 5 months in 2 days. I still get milk if i squish my breasts, but it feels somewhat sticky now. Please help