First, you might want to start with "What do I like doing"?
Of course you won't be able (most of time) to do exactly what you want to do
and will have to compromise somewhere along the way.
If all you are concerned with is having a reliable job that pays well,
investigate Healthcare because I only see that field getting bigger and bigger
because we have a lot of sick people in America.
And they are getting sicker and sicker by the minute.
I could never work in that field because I hate hospitals and needles, .. etc.
I did actual work for a Hopital once, .. but in the computer room located
away from the hospital.
Picking a field you think you might enjoy will make the process easier overall.