im the owner of a serve and my name shows up as yellow when i join a server, but i cant grant permission to myself as it says i dont have permission in chat and their for cant change the settings im trying to with crafting manager and blueprint managaer

How and what permission are you trying to grant

im trying to make it so that i can change the defult blueprints and the crafting time but when i try and do the commands in the f1 console it says "you do not have permission to grant this command"

You would need to be owner with that Rust server to use that command in game. See https://umod.org/community/rust/28384-give-myself-auth-level-2-on-my-server