Has anyone ever felt that someone or something had just ruined the pregnancy charm for you?

Well my sister in law got pregnant with her 2nd 2 months before me and since then she had been so much straining on my nerves. Always asking about how much weight i have gained and then boasting about how much less she's gained this time. Always asking things and then finding my fault in it. I am carrying my first and em currently 33 weeks and she has already given birth. After listening to her and meeting her baby i have no interest in giving birth or enjoying my baby and her arrival. Em just done with life and all. I just feel like she has ruined it all for me. I just hate being me now. Any support will be really appreciated.😔😔