BlueJay-- you're not going to get anywhere if you keep "yes-butting" reasonable suggestions. There IS no quick fix to this situation, and indeed, there may be no fix at all for your marriage... both of you have huge issues re the opposite sex. For there to be ANY change, SOMEONE has to do something different.
Most of us here know something of what you're going through... some know EXACTLY what you're going through. Our suggestions don't come out of thin air-- they come from experience.
What are YOU going to do? Do you want a change of some kind? Are you willing to plow through YOUR OWN sh!t instead of just blaming your W for how you feel? You're the only one who can change YOU. If your W were coming here, we'd tell her exactly the same thing. There's work to be done, but you have to be willing. Or are you going to just keep yes-butting every suggestion?