Your personal manifesto is an empowering letter to yourself. It explains, in great detail, what you are capable of and what you are working towards. But, the key is to write these goals as if they are already accomplished. Instead of writing, "I think I want to land my dream job" write "I have my dream job."
Breaking it up into sections can help you visualize what you want in life. Then, once you have each section filled with statements, you can write a clean, hard copy that you can post somewhere you will see every day. This will remind you of what you are capable of & working towards. Make it REAL. Declare it. Solidify it.