Hmm I don't think dwelling on what we could have/should have done will help, but whatever...
True, probably the reason why half of us are on here. Thinking too much, doing too little.
I'll answer as to what I miss out on EVERY SINGLE DAY, it's strange but anyway this is what I think that I truly miss out on.
Meeting new people and making friendships
That's an obvious one, firstly I wouldn't look so pathetic and although as the saying goes, true friends are very few and far between - especially when you are not exactly the social butterfly, I know I'd rather want real people to cherish than a virtual world with 250 "friends" on it.
The ability to have a enlightened conversation with people.
I may have SP and Avoidance problems but I still appreciate the art of conversing that gives us sincere understanding and connection and goes beyond the petty obligatory transactions...the "How are you?" Bleh.
I also think I miss out on just having the guts to spontaneously help out a stranger, elderly person, a person who is lost, etc I cant think right now of any more examples but you know, being a good Samaritan. I feel I'm too self absorbed in my anxiety and too oversensitive of what the person would think.
Yeah that's it.