Tried to start my vehicle and it just clicks. Battery is new

check ALL connections! clean al ofl em up,make them look like new(shines like new)make sure no corrosion on anything including grounds and starter..next with a volt meter and a helper,have your helper turn the key to try and start it while you check for battery voltage on the small wire on the starter.post findings.

IF the battery has been in the vehicle for a day or two - try this: https://youtu.be/aOMqz11FjA4