Texting mishaps not sure what to do

Girl at school was sitting outside after her exam by herself. I chatted her up, got her number. Her name is Lisa, and made a Simpsons reference joke she laughed at. When I hit her up via text, she ghosted me lmaoo. I told her to get some rest since she was very tired and we'd go out for drinks like I had mentioned to her in person if she passed. But no response lol.