how do i stop being jealous?

Tara • TTC baby no.2 for over 8 years

my best friend who i’ve grown up with. Has two beautiful kids- yea they fight! But she’s just had her 12 week scan! I lost my baby at 9 weeks in 2021. She had a one night stand and is doing it all her own. I’m admiration but i’ve been trying for the last 9+ years and she has a one night stand and had what i want so so badly. I love her so much but it hurts!