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?.

I will advise you same way i would advise my brother.
Firstly, you made a mistake picking up a teacher job, teacher jib that pays graduate 40k at the end of the month no savings instead you will be borrowing to feed.
You should have looked for other better paying jobs to at least Start gathering your money.
Don't settle down, in marriage it's only a woman that will gain while you as a man all you will do is spend and spend, every day many expenses and the woman sef would be giving you wahala untop that. You will run debit sotey you will regrets.
If you are horney go and fork prostitute, that's all.
Focus on getting a better job that pays a graduate better than a teacher's salary will your bsc.

One of the most ghastly wrong decision after graduation as a non education grad is to pick up teaching job

And worst all stay put for more than one year

May God see you through the next phase