I worked for a large company before I started my own business and I knew that my particular position would end in about a year. That was 15 years ago. I had a lot of high level experience and thought consulting might be right for me. I quickly found that although the compensation was excellent, It was very frustrating. People would hire me to validate their own positions and all the creativity, problem solving and innovation I thought I would be doing simply did not happen. So, unlike working for someone else, I changed course. I knew from my experience there were many systems in my former industry that were obsolete, no longer manufactured or the parts to manufacture them were not available. So I changed my business.......I started specializing in supplying folks what the couldn't get. High quality low volume unique parts and assemblies. There was little risk for customers, and I had contacts and experience, so, starting small, I was able to move into larger projects at my own pace.
So the ability to change direction, make modifications in your business model, and the ability to capitalize on opportunities are just a few of the things you get to do if it's your business. It is very satisfying to get paid for what you were able to do. But it is definitely not "trading time for money".
My business was created for me and later my wife also joined which gave us an opportunity to work together on many project around the country and around the world. We were very fortunate and to say we put in a lot of time and effort doesn't really start to describe the dedication and "stick to it" attitude that is required to make it all work. Some times you're a bill collector (not everybody pays on-time), sometimes you're the salesman and sometimes you're doing what you always wanted to do. It's a moving target and I like to think that I "get to do this".
When everyone is at the beach on a beautiful summer day and you're in a conference room hammering out a deal with a client or solving a problem....you might question why you're doing this. There's an old saying that goes, "a person who does what he loves never works a day in his life". Make sure you're doing what you love......It makes all the difference in the world.
And while you're in school, really try to identify the methods that you use to get your best results. Keep honing those while you are in school in an environment where mistakes don't cost dollars or reputation. If you have an idea on what kind of business your going into start asking yourself, "how will what I am planning to do affect my ability to start and run my new business." So start simple, start small and by all means, start now testing your concepts, testing yourself and providing yourself with the educational fundamentals that will allow you to launch when you're ready.
All the best in whatever direction you choose!