I'll make this brief. I am a 29 yr old graduate and single. Ever since I completed my NYSC four years ago, I have taken up teaching job as means to survive. But I noticed that I have not made any progress throughout those years. That beg the question, what's the way forward?
I have some options before me but I don't know the best for me considering some factor like age. I consider going back for MSc but I finished with 2.2 in my degree. Another option I'm considering is focusing on frontend development but I see adverts where they ask for Computer science certificate as requirement and saturation of the job market. Last option on my list is going back to school for computer science degree. Settling down is also another path on the list. So wise men in the house, what should I do please?.

First of all, remove "settling down" from that list. That is not an option.

On frontend development:

If you follow the news, you'll notice that tech layoffs have been coming in waves since last year. Also, tons of younger people with CS degrees come into the job market regularly.

The only reason to learn frontend development right now would be IF you already have an idea for a product that you wish to develop and sell.

Learning development for job-seeking is NOT a good idea at the moment.

Your best choice is to go for the MSc. and try to weasel your way into academia. You may be lucky to get a lecturing job if you can kiss ass, pay bribes and establish connections.

Plus, your teaching experience would be an added advantage if your pursue the lecturing route.