Cosleep

My baby is almost 6 weeks old and in the beginning when she was first born, she slept in the cosleeper. So now she sleeps in the bed with us. I tried to put her in the cosleeper now and she just freaks out. I've even let her cry it out, she didn't stay sleeping for long until she starting screaming her head off. I don't want it to be hard for her to sleep in her own bed when she gets older.