[pfortuny]

At 19 you have a lot to learn still. The advantages of finishing college are, among others:

1) The certainty that you followed, at least, a 'formal' training (in a very loose sense, I know), which gives you a sense of accomplishment.

2) Education, education, education. The mere fact of studying something you do not fancy is such a boon to your education that you have to go through it to understand it.

3) Future career searching (this is somewhat silly but it is a fact).

On the other hand, IF (big if) you DO (big do) have a plan (big plan) for your life already, do pursue it. But I (big I) would make sure that plan includes family, a way to earn money and contingency plans.

So, each way has its pros/cons but just 'dropping' because you do not like it is not quite rational, to me.

But these are just ideas on the spot.