How to drop the Last Nursing session at night 10 points?

what i did with mine is when she got about 12 m. i gave her something that i knew would make her last thew the night. so when she got up i know its going to sound mean i just let her cry cuz i knew that she was not hungry it was just routine for her. so i let her sooth her self back to sleep and she did grate it took about a week of this and it was hard to lay there and hear that but i knew it had to be done. good luck