I think a lot of people feel this way. I am almost 40 but don't have a solid dream. Learning is good for you always. Do not wait until you know what you want to do before you do anything, or you may find you do nothing. It is important to remember that "It is the journey, not the destination" that matters. As you live life and do things, you will gravitate toward things that you prefer. You may not know what those are until you try, and make many mistakes.