Can u tell me what might cause my car to start at all

What is your question?

My car was working fine, but now it isn't turning over or doing anything when I try to crank it, no light on, just won't do anything, please if you have any idea what might be going on

What makes this problem better or worse?

The problem is it won't start

How long has your 2003 INFINITI G35 had this problem?

2 days