ok last week it started acting funny

What is your question?

When I drove it turned it off it would not start almost like it had to cool off sometimes it would be the next day now it wont start at all I get lights on the instrument panel not the security light it comes on and goes right back out now its parked I have tried the resetting it did not work even took the negative cable off the battery and waited 10 minutes and nothing today I took the positive cable off same thing nothing still wont turn over PLEASE HELP whats wrong with my car