Advice needed

im 26 years of age

Work Exp- i work part time Retail/general duties for the past 8 years but no progressing is not possible. learned duties such as Sales, money handling etc

Education- I done 2 fetac courses (Office Admin & Media Studies) and A third level higher Cert in business in tourism.

im starting to think its too late to start looking for a career as im too old. What should i be aiming to do ??? go back to college to get a degree ??

here is a list of jobs i would like to have going into Retirement age

1 Sales man in Computers/Electronics (big big interest in this)
2 office worker
3 General op factory worker

I would consider going back to college but not a fan of education. I live at home with my dad (im single no kids) so getting grants and that would be no problem but i dont want to waste my time doing a course that would not guarantee a job ie i can progress and do the degree in the tourism course but no jobs around in that area ATM.

any advice for me