Why the push to feel happy? You want to be paid more, identify where you'd like to go (company and/or position) what you feel that ought to be worth, and what you need to go to get there. Then execute on that plan, move into that next position, repeat until you hit your skill ceiling, run out of upward mobility, or are satisfied with the compensation.

If you can get a job within the big 4 you probably have a least a base line competency; leverage that and climb the ladder. Life is too short to settle.