@uyobong, I am happy to read your posts, and I like even more that you are quite frankly about yourself.
You live in the same country, which many consider poor. I am glad that you have received a good education and can help your country thrive economically.
It's hard to earn a client's trust. First of all, you need to be a very professional person, better than many other specialists to understand the sphere of services that you provide. Take care of each client, conquer them, be sure to be honest with the client, very attentive and respectful, as if he is your best friend or even a relative. Good luck!