Don't part with your illusions. When they are gone you may still exist, but you have ceased to live. To live a fulfilled life, we need to keep creating the "what is next", of our lives. Without dreams and goals there is no living, only merely existing, and that is not why we are here.
Sometime, somewhere you take something to be the truth. But if you cling to it too strongly, then even when the truth comes in person and knocks on your door, you will not open it.
When the mind goes beyond the thought of 'the me,' the experiencer, the observer, the thinker, then there is a possibility of a happiness that is incorruptible.
Keep away from people who try to belittle your ambitions. Small people always do that but the really great make you feel that you too can become great. When you are seeking to bring big plans to fruition it is important with whom you regularly associate. Hang out with friends who are like-minded and who are also designing purpose-filled lives. Similarly be that kind of a friend for your friends.
I can teach anybody how to get, what they want out of life. The problem is that I can't find anybody who can tell me what they want. Once you are crystal clear about the intended end result that you seek to produce, all the ways that it can become a done deal start to reveal themselves to you. There are many who have accomplished exactly what you want to achieve and could show you the way. You are not ready to ask them because you are not clear and you have not determined which questions need answers.