Sister/moh trouble

My sister got engaged about 2 months before I did. This is her and her fiancés second marriage so they were in no rush to plan things, they didn’t know if they were going to privately elope or even have a wedding. When I got engaged we picked the date within the same hour, then I texted all immediate family to see if that was okay and to make sure there weren’t any date conflicts. About 2-3 months later my sister texted me asking for me to move my wedding date because she wanted to get married the weekend after the one we picked and that since she got engaged first I should have to move mine. We did not move ours due to already have deposits in place plus it being a significant date in my fiancés family. After being very pushy and unkind about us not moving the date they still weren’t even sure if that’s the date they really wanted. After awhile they decided on 09/26/2020 which is 3 weeks after mine. At first she was angry saying that our family wouldn’t come to both and now that’s it’s planned that they are, she constantly says I’m copying her when she still doesn’t have a plan. We were both offered the same free trip to Aruba which we took (we weren’t even going to have a honeymoon otherwise) and she’s angry because she said it’s too much like Antigua (where they are going) and that they were maybe thinking about a week in Aruba. To be nice I asked her multiple times for her music list so I can pick other things and she kept saying she doesn’t know yet and she won’t for awhile. Also, I love burlap have a country theme but she she thinks she might be using that, I’m not allowed to. Yesterday, I showed her the songs I picked out and she threw a fit because one of the songs was one she was thinking about “maybe possibly using”. She constantly bringing up because she was engaged first she gets first pick of everything and I can have whatever is left over. She’s my MOH and she hasn’t helped with a single thing she’s just made things more difficult. She’s made me feel guilty and bad about my wedding and she’s also complained about the bridesmaid dress color, the shoes (I said anything silver even if it’s flip flops is fine- she wants to wear tan), and who else I picked to be in the bridal party. I lost my venue due to the virus so I had to pick and plan an entirely new wedding in about 2 weeks and all she did was tell me what I can’t do and then tried to push me into a place she knew I didn’t like that wasn’t very nice. Sorry for the long post but I’m just so frustrated and hurt, I would understand if they had a date in mine when I picked mine and ignored her but I checked with her before I even started planning and she said it was fine & had no idea when they’re planning their wedding. I can’t sit there and not plan my wedding just because she isn’t planning hers. I feel like I can’t make my day nice without making her angry about it. She’s supposed to be my sister but she just has made this planning process really negative and I’m worried she’s going to be nasty to me the day of my wedding and ruin my day. I really don’t know what to do at this point.