CaptBill's post is great.
I've been a widebody captain for the last 10 years, but only because I got on with the wrong major

. They said I'd be a captain in 5 years when I was hired................and they were right!! They were right because they didn't specify where I would be a captain

. It went like this:
Age 22 Commuter - F.O.
Age 23 Commuter - Captain
Age 24 Major - narrowbody F.O.
Age 26 Furloughed
Age 27 Corporate - Captain
Age 27 Supplemental ( could say ACMI ) - narrowbody F.O.
Age 28 Supplemental - narrowbody Captain
Age 30 Foreign airline - Captain
Age 33 Captain/Instructor major aircraft manufacturer
Age 34 back to that major as a narrowbody F.O.
Age 37 furloughed again
Age 37 Foreign airline - widebody F.O. (B777)
Age 38 Foreign airline - widebody Captain (B777)
Age 48 Captain/Instructor major aircraft manufacturer
If we pulled guys out of various places along the way, i.e. guys who I flew with at the commuter. many are F.O.s at major airlines, some are narrowbody captains, and there might be the odd major widebody captain or two. Some have gotten out of flying altogether. Some have gone corporate. There is one guy, who is a good friend, who is at the same foreign airline I just left and is in the right seat of a widebody. He has never been a jet captain. I flew F.O. for him at the commuter. Sounds kind of sad, but he is one of the happiest guys I know. He's married ( to the same woman ) and has two grown daughters. He enjoys life to the fullest not worrying too much about the seat and position.
Having the goal is good, but don't sacrifice other important things in your life to achieve it. Some sacrifice is probably going to be necessary, but be careful just how much or you could end up a lonely old widebody captain.
Typhoonpilot