The answer to this question should be that one should try to become an Engineer if one wants to. As simple as that. Whether one will complete his degree in Engineering or not is a different thing. But if if one wants to be an Engineer then he must give it a try at least.-Should I become an engineer?
Depends on which subject you found more interesting in your high school. If you liked Electrodynamics/Semiconductors then go for Electrical. If you found Thermodynamics and Mechanics more interesting then go for Mechanical/Civil. Similarly Chemical for Chemistry loving people and Software Engineering for those who like Coding.-What engineering discipline should I study?
It depends on which branch you choose and how much you study everyday. But comparably we can say that Bachelors in Engineering is tougher than Bachelor on Science degree. It also depends on which University you are studying in. Some universities have a very difficult curriculum compared to other.-Is engineering difficult?