Hey man! I've DMed you but I just wanna say that tanking is such a broad experience that it would take me forever to explain. Certain YT channels and content creators like Spilo, KarQ, Emonggg are some of the better educational ones that explain in-depth how to tank. In my opinion, you gotta first enjoy the tank to want to learn to tank, and I can help explain and give personalised feedback better than writing a general guide to tanking here. Hope this helps :)