Can daily cold water shower get rid of anxiety? what else could get rid of anxiety if done daily thats not medication or a psychologist (all booked cause of covid?

There is some evidence for cold water hydrotherapy. https://www.psychologytoday.com/us/blog/inner-source/201407/cold-splash-hydrotherapy-depression-and-anxiety | Diet: More vegetables & fruits Less-caffeine&alcohol https://www.health.harvard.edu/blog/nutritional-strategies-to-ease-anxiety-201604139441 | Stay connected ! https://www.mentalhealth.org.uk/a-to-z/f/friendship-and-mental-health

Good advice from Dr Gendo. Some immediate tools could be useful: meditation, Tai Chi, Yoga, biofeedback therapy, even hypnosis.