How to stay positive?

Tina

We’ve been ttc for 1.5 years, with a miscarriage last May. I’ve remainder positive but the last few months it’s gotten really hard. On Sunday a close family friend of ours announced they are expecting and I’m happy for them but it makes me so sad and frustrated for us. So many people are having babies this spring including my sister-in-law. How do I get my positive attitude back to keep trying? I feel so close to giving up.