Hi Chandra! Welcome!
You have done an awesome job, congratulations on surpassing your goals!!!!
Often I see that decreasing from 2 sessions is the hardest step. How many ounces are you getting from each pump session? You have a few choices:
Decrease them at the same time (e.g. you get 8 oz at each session, decrease them to 6-7 oz for 3 to 7 days; when you are comfortable, decrease them further)
Pick the session you prefer to get rid of first and start decreasing the output of that session gradually.
I was going to suggest weaning the evening session first since I assume you get more output in the mornings and that might be the hardest to get rid of. However, I remember when I was nursing, the night session was the last one I weaned and it worked out fine for me.
Even though I personally prefer to wean out one session at a time, I've noticed that occasionally EPers who pump a fairly large volume at a time have trouble with this method when they get down to the end (1 or two sessions left). So, if you are having trouble with these last two, my gut feeling is that you should decrease them both at the same time, but go really slowly, more slowly than if you did one at a time. (My usual aversion to decreasing multiple sessions at once is there is a potential to get really uncomfortable and engorged if you go too fast.)
Sorry this got long! HTHs! Let us know how it's going!
Caryn
Nursed Nia for 12 mos, W&P'd for Olivia until 13-14 mos and nursed Afram until 3 years after W&Ping for 16-17 mos.

