Entrepreneurship teaches you a number of things about life, in general. It is an immensely satisfying journey, even if you do not reach your intended destination. However, the journey is often very challenging and it takes a lot of patience, persistence and perseverance to succeed. And unless you have the passion for what you are doing, finding the other 3 Ps within you becomes challenging.
I advice aspiring entrepreneurs to not get taken up by stories of instant success. Those are rare. Instead look at the 1000s of others whose ventures did not succeed. Or did not succeed as aspired.
Even those who succeed, often a lot longer than they had planned for, and it is often tougher than they had imagined. What sets the successful apart from the ones that gave up are the 3 Ps that I outlined above.