Ballet is one of the hardest professions there is.  You've done well so far, but it only gets harder.  If you wish give everything of yourself to be part of the art form, then go for it.  The people who stay in the profession are those who keep coming back season after season, in spite of the incredible demands it places on us.  There are plenty of talented dancers who decide they don't wish to give everything of themselves for dance --- they wish to do something else with their life instead.  That is fine too.

As long as you feel it is worth it to you, then you should keep dancing.