Hello Nairalanders please i need your help to make a good decision.

I studied Agricultural Economics & Extension and currently managing in a place where i offer Admin support without been paid. Now i want to quit and start learning any I.T/tech skills that is on high demand and will be beneficial to me cause i currently base in Abuja and it has not been easy. Of course we all know tech is a broad field, and there are a lot of interesting directions you can go in. Please advise which I.T skill that is on high demand i can learn as I'm a fast learner..
Your contributions is appreciated.

Thanks...