You can use only those resources that you know you have.
Do you know what you have?
Is it clear to you what you have in your hands? Do you know what your strengths are? We have different things in our hands. For example, we have abilities, skills, attitudes, information, knowledge, know-how, experience, networks, personality, and many other things.
Have you ever really thought of what you have in your hands? If not, then now is the time to make this clear to you.