Its very human to be mad at what you can’t control. Its one reason that treating anxiety has a lot to do with focusing on what you can control and accepting what you can’t. That’s something we all work on in some way or another, for our entire lives. Its effort to cope with jealousy for sure. When I feel jealous about how easy speaking is for everyone else, I state to myself “and I’m happy for them”. It doesn’t invalidate my own feelings. it stops me from spiraling further into the jealousy. Maybe that will be helpful for you, maybe it won’t. Keep on keeping on.