Make sure to check out my last post, about the benefits of cold showers, before reading this: https://steemit.com/health/@liifeofo/why-you-should-take-cold-showers
If you are not used to take a shower with cold water, you will not be thrilled at the beginning. To profit from these many benefits, I recommend willpower and frequent training.
These are pretty much the steps I recommend you, if you want to start taking cold showers, but haven't been able to get into it yet. Yes, it takes a lot of courage and overcome to do, especially now in winter, but I promise you, once you get used to it, it will be much easier and you can profit from the awesome benefits :)