I'm writing an essay for German class and I was wondering how I would say that my friends mean a lot to me. I wrote "Sie (meine Freunde) bedeuten mir viel" but something about it just sounds...wrong. Is there a different/better way to phrase this in German?
The sentence you quoted is actually ambiguous, because "Sie" could either be the third person plural pronoun or the second person polite address pronoun ("Entschuldigen Sie bitte").
If you meant third person then your sentence is perfectly fine. However, if you meant second person polite, then it does sound off, because you would not address your friends with a polite form, but instead a regular second person pronoun ("Du" or "Ihr" -> "Du bedeutest mir (sehr) viel", "Ihr bedeutet mir (sehr) viel")