Sisters in laws are making our day about them

I wanna start off by saying I do like both of my sisters in law. They’re nice and fun. But they are quite different from me mainly due to age difference and interests. We have a 13 & 11 yr age diff. The younger one got married in 2017 and I was a bridesmaid in that party.


I canceled my bachelorette party to go to Disneyland for the weekend with my small bridal party.
Both of my SIL are guilt tripping me into letting them get ready with me the morning of the wedding when I specifically mentioned that I wanted that intimate time with my mother and my very small bridal party ( My sister and two besties)
2017 bride said that since we decided not to do a big bachelorette with all my gfs and them that they feel left out and bummed. And that they should be there morning of to bond. Even though I planned a spa day with just them two. They still feel that they have to get hair and makeup done professionally with me and it’s stressing me out
The older one lost a lot a weight in the last two years and told my MIL that she has to look better in my wedding than in 2017 SIL told her that I’m having a big wedding to out do her and have me grief on throwing a big formal wedding (Hera was small and sweet) that’s already a red flag and 2017 SIL is even more upset cause I was a bridesmaid at her wedding and she thinks she should be one in my wedding and thinks she should be more involved and even tried taking over my MOHs original plans for a bachelorette.
As much as I enjoy their company I really don’t want to get ready with them especially since they’re already making it all about them and their feelings. How do I tell them AGAIN that I do not want them getting ready with me without causing drama?