Ignore the age. In 10 more years you'll be 10 years older no matter what. You could be a world-class programmer and product designer at that point. Or you could be wishing you had started 10 years earlier. I seriously doubt you'll have starved to death by then unless you make some destructive life choices... I could come up with plenty of examples of people who didn't start their life's work until 33 (and much older)- but it's irrelevant- a distraction at best.
Having said that, I think we have an innate tendency to... acclimatize as we get older. We start to expect that things should come easier. You'll need to counter that if you continue this path. Expect it to be very hard- on the learning side and the self-marketing side and the delivering value to your employer or own business...- and deal with that reality instead of assuming that the difficulty is somehow related to your age or self confidence or how long it took before you got whatever degree etc. etc. Step up.
Having said that, I think we have an innate tendency to... acclimatize as we get older. We start to expect that things should come easier. You'll need to counter that if you continue this path. Expect it to be very hard- on the learning side and the self-marketing side and the delivering value to your employer or own business...- and deal with that reality instead of assuming that the difficulty is somehow related to your age or self confidence or how long it took before you got whatever degree etc. etc. Step up.