Hi @lea2! I’m Amethyst. Welcome to the forum! 
The easiest way is to take a shower and visualize the water washing your anxieties away from you. But there are several bath spells that can do what you want too! Here is a couple of them!
Then there are tea spells, which take water to make tea. Here is one of my favorites.
You are also warmly invited to join our Group Ritual this Thursday, tomorrow, at any time during the day. Or you can join the Zoom meeting at noon EST. Either way, it’s a lovely ritual and will help you get to know coven members. Tomorrow’s meditation is for peace, which would help with anxiety.
I hope that helps you out and doesn’t confuse you too much. If you have any questions just ask and someone will come along and help you out. I’m also sure that others have their favorite bath spells they’ve used and might link them here for you to use as well. Good luck!