Do you see a therapist Stewy? There's several methods that you could try, although not each one works for every person. CBT therapy is one, Mindfulness and Meditation is another popular one. Talk therapy itself can be helpful as well.
I personally have anxiety too, lots of good suggestions here already. I'm very, very sensitive to caffeine after quitting alcohol, I try to avoid it as much as possible. Getting enough sleep is important too, i'm more anxious on days that I don't sleep well.