Help momma's!! My LO is almost 5 months old and still wakes up every two hours to nurse. I have…

Help momma's!! My LO is almost 5 months old and still wakes up every two hours to nurse. I have tried the oatmeal in the bottle before bed and she still woke up after two hours. I am exhausted and don't know what to do. Any suggestions would be greatly appreciated. TIA!