Can I still increase my milk supply?

I am 2 months and 16 days postpartum and never really established a milk supply. Each time pump is about 5-40mls. I was switching between several supplements and I think wasn’t as consistent in pumping. Now I am motivated to start pumping consistently. Is it still possible to establish or increase my milk supply even though it’s been 2 months postpartum? How long should I expect to see results if I start pumping regularly every 2-3hrs? Any other tips?