You should be. Start saving.

Anyone who tells you there's no age discrimination in the industry, old people are fired because they are no good, so just be good - that person does not have your interests in mind. They aren't thinking about your future.

Set yourself up as a consultant, read Patio11 for tips and don't worry about growing old. Heck it pays better than working regular and you get to have more than one client.

Just keep being good, learning new skills and liking what you do. I'll be 40 soon so I'll let you know if this tactic works out.

Yep, I started learning C and ethical hacking, to start with. I do have a decade till I turn 40, but that's not too long honestly.

It feels like time goes faster as I get older (I'm mid-twenties).

It most certainly does. http://en.wikipedia.org/wiki/Time_perception#Changes_with_ag...