another wedding....HELP!

So, I posted a while back about being Matron of honour in my best friend's wedding on July 15th and I'm due March 5th.....well now my sister in law asked me to be in her wedding party for her wedding June 24th (also couldn't say no as we're super close and I want to be there for her) Just looking to see if anyone has any survival tips, survived similar experiences, etc. Luckily my sister in law is letting us wear comfy flats or flip flops, and is 100% baby friendly, even wants me to have my baby girl in my arms as I walk down the aisle. She's a really nice understanding person who works in childcare and "gets it" that right after birth it's tough. She's even 100% cool if I can't make all the pre-wedding events etc. But my best friend's wedding seems a lot more demanding and 100% NOT baby friendly or foot friendly lol Am I going to survive 2 weddings post partum while breastfeeding? I'll have my 2 year old daughter as well...Ah!