In my own opinion,if you are planning to relocate to America irrespective of your certificate go to learn atleast a trade like Mechanical engineering either petrol or diesel, house maintenance or carpentry, barbing and hairdressing, fashion designing etc. All these will help to generate money quickly even your tax remittance will be reduced compared to carrying your Certificate to serve tea in MacDonald or cleaning gutters .
Also note America is not the last option, if you are averagely okay continue God will blessed your hustle because when you go around the city of America you will see a lot of frustrated and depressed people whose condition are worse than Nigerians.
My own submission from experience.

Oga No vex... Abeg wettn your eye see for America!

My brother tell us more.

unfortunate state of affairs.

I'm good here on vacation and will be returning to Nigeria before Christmas to resume in my office but alas! Many Nigerians live in poverty here as a result of survival to acquire citizenship status, some engage in criminal acts which might take them to jail, some could not pay house rent of about $850 monthly etc all because no reasonable job.

So this is the reason why u typed that rubbish up there

Issssss

I opened a thread about travelling, wish I could find it.

I want to add some things there.

Seriously though, get ready to be stalked, and by stalked I mean followed minutely in every detail of your life, to your knowledge, in broad daylight, don't say i didnt tell you.

Atigba:
So this is the reason why u typed that rubbish up there

Issssss

how can you refers to someone opinion as rubbish guess you must have lost your sanity.