2010 buick lucerne 3.9l motor

I have a 2010 Buick Lucerne with a 3.9L V6 Motor The harmonic balancer is trash on it so I'm needing to replace it, what is the best way to loosen the bolt on it? I'm probably going to just get the removal tool or rent it anyways but, question is, is there a way you can use the tool without...

I have a 2010 buick lucerne CXL with the 3.9L motor, and I believe my harmonic balancer went out, but I'm not 100% sure so I'm just trying to get some thoughts before I take it anywhere. Now I'm no mechanic so if I say some things wrong, sorry!! I mean I've done some basic TLC things like, oil...