Ttc fatigue

Hi everybody. Ive been trying to conceive for almost 3 years due to unexplained infertility. We started IUI treatments in the fall and got pregnant our first time but lost the baby at 20 weeks. I just got pregnant again after IUI but suffered an ectopic pregnancy and lost my right Fallopian tube. I just found out my sister in law is pregnant after just a couple of months of trying to get pregnant. I’m happy for her and my brother but it hasn’t even been a week since my surgery to remove my Fallopian tube and I just feel hopeless. How do you navigate staying positive while dealing with infertility and/or loss? How do you navigate friends and family getting pregnant? I am almost afraid to be positive because when things go wrong then I’ve gotten my hopes up. I’d appreciate any advice or positive stories ❤️