I worked 7 for the same company, while studying and a few years after I finished my degree.
It was a small chaotic company, they were a startup that found a hand full of big corps to pay for the day-to-day expenses, but it never really grew up and never got product market fit.
After a big re-write of the product, with much overtime on my side, I asked my manager what my personal growth options are in the company.
Well, there weren't any.
So I quit a month later and did a sabbatical in 2014.
After that I tried freelancing and tried different things, always asking myself "Is this what I want?"
It helped me at least to filter out what I don't want and I'm much happier.