HELP!! CO-SLEEPING HAS TO STOP!

••Kay•• • Londyn 09.27.16🎀
How do I wean my 3 month old from sleeping with me?? I want her to sleep in her crib but every time I put her to sleep and lay her down in her crib, she cries and I pick her up and she's sound asleep again. This is a bad habit that I have started!!! Ugh! ... I need help....