When it comes to my job, I certainly love doing it. When you get older it is not really a question of whether something is easy, so much as whether you like doing it and if you think the work is meaningful. Also, the longer you focus on doing something well, it tends to feel easier as you go. For example, I can do scientific research (job) and build websites (fun) very easily because I have done both for years. But drawing is hard for me because I haven't done much drawing. If you want to do science or something similar, I would recommend not only sticking it out in school, but also doing some of your own research outside of school. Check out the local MakerSpace and see what you can find at the library
If you stick with it, it will become easier because you will be able to do more as you learn more!