I find the more I work on my spirituality the better off I feel. I'm a big ole atheist. Yes you can be spiritual and be an atheist. I don't believe in a god but the universe works in mysterious ways when needed. If I spend time in the morning meditating I tend to feel so much better. I have a few meditations I switch up with. I mostly do guided meditation right now, cause my brain is a bit frazzled and can't pay attention. I always start with this video.
You just have to try a bunch of things and see what works for you. Food also plays a big part, but that's a different post. Let me know if you have any questions.