Help! Struggling :(

In July I went for my 12 week scan and there was no baby just a sac 😣 I had to stay pregnant for 2 more weeks and after my body wouldn't produce a miscarriage I had to have surgery to remove it. I thought I was getting over it but my sister and 2 of my best friends are pregnant. my sister had her 12 weeks scan last week and I am really struggling to keep my shit together and struggling to get through this. I've never had pain like it. of course I am over the moon to be an aunty for the first time and this is my sister's first child I just can't seem to cope with everyone going on about it all the time when I know we should both be celebrating having a baby. I've booked myself in for counciling but I have to wait til the 9th November. has any one got any advice please? thanks x