My first time in group therapy, we had to do a role play every week. I HATED it. It didn't helped me. My current T has suggested we could do role play, to practise how I want to handle an upcoming situation. But the thought alone makes me want to run away as far as possible. We haven't done it. Just talking helped me enough.
I think it can be useful for some people. You can try it once, to see how it is for you. I can't keep myself serious during role play. I'll giggle the whole time.