I just started work and my LO wakes up more to drink at night. It is so tiring. Any suggestions to help me?

If your LO is 6 months old or above, you can try giving oats with milk as last feed. It can prolong night feeds. If you are comfortable, let LO cry a little, sometimes drinking at night becomes a habit for comfort and need not be for milk. If LO is younger than you might want to increase milk intake accordingly or get hub to help out.