If my mum goes to heaven and i go to hell, is she going to be happy in heaven still? If she's not is it heaven? If she is, is she still my mum? [Spirituality & Religion]

We won't have the same consciousness after we passed from earth. If your Mom accepted Jesus. She will have a new body/New Spirit and clear consciousness. not the same person but righteousness as Jesus Christ in Heaven with him.

She won't even know what we did on Earth unless God explains what she did on Earth.