Usually when someone needs help, they explain what it is they need help with and ask questions. Otherwise, we have no idea exactly how to offer help to you.
Hey Cat2583 i have the same phone and carrier! if you go into options you can add words to your "custom dictionary" it helps if they are peoples names or slang. at first i had the same problem, i needed to select each letter. also make sure you are spelling it right! because if you start to spell it wrong, you mite as well delete the whole word.