Tongue piercing barbell too long?

So I got my tongue pierced yesterday and the barbell is really long. I know that it has to be long because of swelling, but it is really uncomfortable. It has to lay in an angle like this: / to fit in my mouth. I almost can't speak and when I try to speak, no one understands me. It is also really hard to eat. Is the barbell too long? The guy who pierced me said that it was 2,5cm long. Can I get it changed to a shorter one or should I wait?