When I realized how deep I was, my inner monologue was something like: "Holy s#*t, 136ft, how did that happen? Well, that's only 6ft beyond rec limits."
As Uncle Pug used to admonish me ... you really need to rethink your approach to that dive. What you should be thinking is "Holy s#*t, 136 ft, how did that happen?
That's more than twice as deep as I planned to go."
Rec limits should not enter the thought process ... you hadn't planned to go to rec limits. Nor ... on an AL80 ... were you really prepared to go there. So don't think about hanging out just because there's some arbitrary line hovering slightly above your head. Get the heck outta there because the fact that you blew your plan that badly is a giant red flag that something went very wrong.
For sure you were narced ... probably more than slightly. With your level of experience, you wouldn't be in a position to be making very good decisions. The red flag shouldn't be that you slightly exceeded recreational limits ... but that you blew your dive plan by a very wide margin. Any time that happens, it's time to get the heck outta Dodge.
I'm glad you're OK. I'm glad you decided to talk about it. I can't help but get the feeling that you're taking solo diving a bit more lightly than you should be ... particularly on the cylinders you're carrying.
You need to rethink what happened, though ... you're emphasizing the wrong things. When you made the decision to solo dive, the adage "Plan your dive and dive your plan" took on a whole new significance. Be very careful about taking it too lightly. The biggest mistake you made in this case wasn't going too deep ... that was an accident. It was deciding to hang out there ... that was a potentially much worse accident.
Maybe you should reconsider whether or not you're ready to solo ... sounds to me like an extra brain would've come in really handy ...
... Bob (Grateful Diver)