Should I sell my rocker due to space constraints?

Hi mummies and daddies! I'm currently expecting and baby is coming out end June. I was blessed a rocker by my friend. However, I don't have space to even set it up after I set my baby cot as I am living with my MIL. I'm not sure if I should keep it until I move onto my own house (Ard next year and baby will be 6 months) or should I sell it. Is a rocker necessary for you parents during the first 6 months?