My advice to you is get married: if you find a good wife you'll be happy if not you'll become a philosopher.
Wisdom begins in wonder.
There's no regret. You can't regret. I mean I've felt regret but I've also...
The trick with computers I think is to approach old and new things with the same reverence as you would like your favourite chair and not be seduced by the constant innovation otherwise you never do anything.