squeedge04's journey

I recently interviewed for an internal position at my company, but after some reflection, I've realized that it's not the right fit for me. I didn't send a thank you email right after the interview because I got caught up with work, but I'm still within the 24-hour window to follow up. I'm contemplating whether to combine my thank you note with a message to withdraw my application in one email or to keep them separate. I think it might be more efficient to include both in one email, but I'm concerned it might come off as rude. I appreciate any advice on how to approach this situation.