Decide what you want to do for a living, or like doing in general. What do you do with your spare time. What do you do in free time? Then find a job that matches your interests.
If the answer is learning, so be it. Do you dread “Bein ha-Zmanim”? Is not learning the hardest part of Tisha B’Av? Does the partying on Purim bore you? Are you sad when they announce a kiddush in shul since it cuts into learning time. Then you should plan on kollel, and becoming a teacher of limudei kodesh.
Otherwise, decide what you like? Anyone who enters a career just because they think its a good source of income will be miserable at first, and feel like an idiot years later when the good idea from thirty years ago isn’t so good as the economy changes.