I landed on my foot wrong and i thought nothing of it. now the bottom of my foot hurts and the top is bruised and swollen.

Rice now.: Sounds like you would benefit from the RICE protocol. Rest, Ice , Compression and Elevation. Painful on the bottom and bruised on the top could mean a fracture is possible. See how it feels tomorrow. If the foot still is painful when bearing weight, then you will need an x-ray to verify possible bone trauma. I'm sure a Healthtap specialist can guide you through your care.