Tomorrow is legs and shoulders and I can't stand the thought of not going
There's a difference between dedication and compulsion. This is a good example. I'm a little weird like this though - in that I don't subscribe to the typical lift or die trying mentality. My motto is lift intensely and then live immensely. There is something to be said about the discipline of someone who can walk away from the gym for a day and be at peace with knowing it is a marathon, not a sprint. To lift beyond your safety takes self loathing, not self-discipline.
My suggestion to you is that you find a quiet moment in your day to ask the part of you who can't stand not going, what its motivations are, and what it wants more than anything for you.
and my wife is not supporting me at all. She younger and she tells me I'm to old to be lifting 560lbs and that I need to stop going to the gym.
1. You're not too old to be lifting 560 pounds. If you can do it safely, continue to do it until you do die, hopefully from natural causes and not a ruptured lung because you were using some tool that you knew was failing you, but you were so insistent on your compulsion you didn't stop to say something is wrong.
2. She wants you to stop going to the gym and is looking for an excuse to implement that decision. She is either insecure of your physical prowess and what it means to the safety of her relationship, or she is seeing the compulsion in you and doesn't know what to call it, so she calls it "going to the gym".
I love setting goals and Reaching them and I don't want to turn in to one of those guys who goes to the gym and puts in very little effort. There would be no motivation for me.
What exactly IS your motivation? Fear? It sounds like Fear is dictating your decisions, and not Love. I'm not trying to turn this into a Hallmark Valentines Card here. I'm just pointing out that when we indulge our Fear, we end up doing things that are not good for us, while believing what the Fear is telling us, that it's for our own good.
You will never be that guy, the one who puts in very little effort, so don't give into that argument. The ego is trapping you in an identification with its opposite, and nothing good can come from that. Only more goals out of your reach that would allow you to feel the Love that can come from being ok with where you are at on any given lift.
When we think of becoming better, stronger, faster, we find it fuels progress, up to a certain point. And then it can turn on you. Don't give in to the voice that tells you to stop trying, but simultaneously don't indulge the fear that drives you to make unhealthy decisions for yourself, in the name of trying to avoid becoming something you fear.
Let the motivation come from a place of Love rather than Fear. And when I say Love, I mean Love of your life, every aspect of your life, and the Love of lifting in general.
Let me put it another way for you. If you continue to operate from Fear you will undoubtedly hurt yourself again, and could potentially destroy your ability to lift at all anymore. It takes a strong man to press 560 pounds, and it takes an even stronger man to know when to rest and heal.
Besides the point - stop using those tools you're using. They're distracting, and let's face it - if your as old as you are and you can lift more than 500 pounds for even one rep, there's no reason not to just continue lifting heavy without the use of these contraptions that are forcing you into unhealthy movement patterns. Just get in there and lift like you love it and fuck everything else.