You really only need 5 seconds of insane courage. 5 seconds is enough time to make a decision. Making a decision is, mentally, the most difficult part of any undertaking. You don’t have to be courageous for a year or however long it takes to finish the undertaking. You just have to be courageous long enough to make and commit to the decision. The next time you are worried that you aren’t strong enough to do something, remember you only need to be courageous for 5 seconds