I like to let others think that I'm a fun guy
That's great, but are your a nervous person under all of that bravado?
Yes, I'm a good actor, acting like someone I'm not.
You shouldn't brag about yourself, especially if it's an act. It's better to be honest with yourself about your personality and then others will respect that.
You can't be honest all the time.
You can try to be honest. Don't you want people to know there's more to you than just being a fun guy? You shouldn't let people know about the other parts of you.