but WAIT...there's more!
not only must you have a skill...it must be one in demand.
a tailor at a nudist colony, for example...is not going to get much work.
a 4.0 in gender studies isn't in high demand much most places either...
go where the jobs are that you have an inclination and skills to do.
Note: if you're not a fast learner don't take up skydiving...