Muddled

Would you choose a degree which your passion lies in but which future may cause you difficulty to earn a living or would you choose a course/path of degree which will let you to lead a comfortable life?

I am muddled over this because i am entering year 3 now and don't wish to further my course of study into a degree but instead, take a whole different route. I asked my sister which she would choose and she said the latter, the one which would allow her to lead a comfortable life. But i am conflicted. Because for me, life is too short to not be doing something you love. But i don't know.. You do need to survive in this world and a stable or reasonable degree in my opinion is good to fall back on. I don't know :(