In the mean time, until you find something that resonates with your passions in life, continue to go to school and get the basics under your belt.
If you run out of basics, consider some of the following courses that (from my personal and professional experience) have a high probability of helping you in whatever situation you may find yourself in through life:
Basic Psychology - Unless you plan on being a hermit all your life, you will interact with other people. Knowing what makes all of us tick can help you to make better relationships that can help you to be successful in the board room and in the bedroom.
Basic Statistics - It's all about the data, how you gather it, interpret it, present it to support your conclusions.
Project Management - Just about everything new in life and in work is a project. Knowing how to manage projects is knowing how to manage change.
Basic Accounting - It's the language of business. And, everything is a business. Everything.
Basic Finance - It's about being able to make business decisions based off of quantitative assessment and comparison. And, since everything is in some way a business, you will be making decisions. Gut decisions just don't carry the clout against a "decision science".
Basic Business Law - Understanding the concepts of legal systems is invaluable to both personal and professional pursuits and situations all through life.
Basic Marketing - Knowing what goes into creating and communicating your value propositions will help you in all areas of personal and professional life. It's about communicating persuasive value to induce compelling action.
Geography - Knowing what places the world has to offer and where they are in relation to one another is invaluable in personal and professional life. It helps you to have a broader view on everything.
Art History, Music History, Literature, Philosophy, Wine Technology, Meat Science, Beverage Management, and/or Commercial Food Production - Being able to talk about Art, Music, Food, Wine, Old Cars, Cigars is invaluable in both personal and especially professional life. Being able to convey personal polish through knowledge of culture not only makes you stand out, and it can get you laid as well.
Basic Latin and/or Greek - Many languages are based on, or influenced by Latin and Greek. You'll be better able to figure out what unfamiliar words mean if you know the roots of the parts of the words.
Golf - Although the sport itself appears to me to be more boring than death and has little to no appeal to me, I sorely regret never learning how to play. Colleges have courses in a variety of sports and physical activities. For some degrees, it is required to have some kind of physical education. Make it golf if you can. Why? Because more networking and business is REALLY done "on the links" than perhaps in any other venue.
Hope this is of some value to you. Feel free to message me if you would like more.