weaning from pumping and eventually breastfeeding

Thaydene • Wife and first time mother to my little monster. Baby boy born on 12/7/15: the day my life began 💙 thank you God 🙏🙏
Any tips for me ladies:
My baby is 11 months old...I want to stop pumping at work now (I hate it lol) and I want to cut back on nursing even when we are together. I have just introduced formula when he was about 10 months old Bc my stash finally dwindled and I barely bring home anything even with pumping every 3hrs at work. 
Anyways how can I cut back and eventually cut out needing to pump at work? 
And how can I start to wean my boy from needing mommy's boobs? He still wakes up like every 3hrs at night to nurse 😩😩😩
#bittersweet #pleasehelp TIA!