Skweebs

Okay just tried it again and now it won't start at all and when I turn the key it just makes a clicking noise

Last 2 days when I go to start my fusion there is a noticeable lag starting it up, it's cranks everytime but takes longer then usual It sounds like it almost doesn't want to start Just trying to get some ideas as to why this is happening and get an estimate of how much this is going to cost me