Assured
Part of speech: verb
Definition: To make sure and secure.
Example sentence: There are trees of a thousand sorts, and all have their several fruits; and I feel the most unhappy man in the world not to know them, for I am well assured that they are all valuable. I bring home specimens of them, and also of the land.
Confident
Part of speech: adjective
Definition: being very sure of or positive about somethingself-confident
Example sentence: I'm confident in who I am, and I'm not doing anything wrong. I'm just being myself: being comfortable with my body, comfortable with my sound, and I'm figuring out who I am.