Nicolas recommends the following next steps:
For example, if you want to be a scientist/engineer, you should invest your time and energy on math and science courses in high school. You are then prepared for the rigor of a STEM curriculum in college.
On the other hand, keep an open mind to your future career pursuit. Your ideals and aspirations may change due to life circumstances. Nonetheless, a good and balanced high-school education should be a good preparation for any future challenges you are taking on.
Say, if you're interested in STEM, there are youth groups that organize free summer camps to introduce you to the world of STEM education. I'd recommend you seize the opportunity to engage with these groups, either as a learner or a volunteer. Building a connection with them could prove to be extremely advantageous for your future.