Car still won’t start

I have replaced what was a bad battery but my car
still won’t start. It turns over now but won’t turn on.
Lights, radio, and dash turn on as soon as I turn
the key but not the car. I hear it trying to but it just
doesn’t. Before the battery was replaced, it would
click when I turned the key. I’d hear several clicks
but no life. I don’t know what it could be.