Warrior Name?

Quick question, I know what I want my warrior name to be and was wondering if I would be able to get it changed to that anytime soon, I think the reason I'm really asking is the inconvenience in RPG's so I was just wondering if there would be a better time for this or if now is okay. (If I had it changed I would remain Shimmerpaw in the current RiverClan/ThunderClan RPG because it was already begun)

I'll become a warrior with her because we're sisters and stuff.

Actually, I figured that we would just have the ceremonies in the flood rp not long from now. I need to know the warrior names though.

Shimmersoul is what I had picked out.

I know I told you in the chat but still post here anyway

My warrior name is gonna be Flameblossom