I would say more like doing. Trying is a word of Quantum Mechanics. It says that you are both succeeding and failing at the same Time, until one is and the other isn't, they are both happening Simultaneously. So if you're focused on "trying" you will always either fail or succeed, but when you say "I will do this" or "I know I can" You are affirming to the Universe your Commitment to Succeed, and not leaving it to chance by trying.