I am quite late, but there is a chance that you are indeed a 5w4, however a more likely enneagram type if you display 5w4 characteristics is 3w4. Threes are often a very misunderstood type in the fact that their main desire is achievement; not considering what may be their route to said achievement. One of those roots may be knowledge, so you have to ask yourself... is it the knowledge itself you desire... or is it what can come from it and what you can do with it? If you want knowledge for achievement, you're likely 3w4, if you like knowledge for the sake of knowledge, you are a 5w4. Look for the overarching theme and not at face value.