Stress is the enemy; best ways to fight it?

Melissa • TTC 3 years. IVF BFP 9/17. 🥚due 5/18
So I had a panic attack this week and wound up in the ER. Basically a lot of bad news and stress these past couple weeks. It made me skip a period even.                      ....        
So here's the question - how do you combat stress? So far I've gotten a meditation and hypnosis app, started spraying lavender essential oil, mindful breathing and cut way down on caffeine. What do you do to stay calm?