My experience is also similar to everyone else's. I pumped for DS with a PIS until DS was about 15 months. After that, he was relatively disinterested in EBM so I weaned myself from the pump
:. There were difficult moments - stress, illness, not enough water, etc. - where I wasn't pumping quite enough. My freezer stash got us through that. I also used herbs like fenugreek and my favorite, More Milk Plus. That stuff was a godsend for me!
To build a stash, I started pumping in the mornings once my supply was established (at about 5 weeks). Even though I only pumped 2 - 3 ounces, I built up quite an inventory in the freezer that way. I continued pumping in the mornings until DS was about 9 months. I wound up dumping about 100 ounces of EBM just last month since DS has decided it isn't for him. That was painful.
I probably should caveat this by saying that DS never was much of a bottle drinker. He maxed out at about 9 ounces a day when we were away from one another, so I didn't have a high quota to meet. Reverse cycling was pretty much a way of life for us until about 14 or 15 months. He is just now getting to the point where he doesn't need the night-nursing as much on a regular basis. It also helped that I was only away from him for about 6 - 7 hours a day until he was about 6 months old.
I worried a lot
about my supply and that was probably the single most detrimental thing for it. Stress is a huge factor, so while it's easy for me to say now from the other side, do your best to create a relaxing environment when you pump. Surf the web, read, or meditate - whatever works to calm you. And, yes, water water water! There were ebbs and flows to my supply, so I learned to rely on the freezer stash when I had to.
You can do it! I'm sure that your old boss was truly trying to be supportive. I can barely imagine anyone in my office nursing, much less talking to me intelligently about pumping, so I'm a little jealous actually
. That being said, don't let anyone discourage you. Everyone is different, so her experiences have nothing to do with you. It's hard work and blessings to you for doing this wonderful thing for your little one!