May I recommend that you spend time reading the Professional Pilots Study/Training section under the wannabes forums. Start here:
Wannabes Forums - PPRuNe Forums
To simply tell you to do one option and send you on your way would be a complete disservice to you.
After you have read through those training and I-want-to-be-a-pilot threads you will have a much better picture of the training and career path options ahead of you.
To start with you will not go from 200 hours to $200,000 anytime soon.
And yes, unless you are a President's son/daughter you will start out as a "First Officer". But you will likely have to take several other steps before you are hired as a First Officer at a international jet carrier.
After a commercial pilots course and 200 hours your training is really just beginning....not over.
There is a lot to learn about the industry; have fun learning.
I wish you the best.
Respectfully,
Northbeach