What happens if forgot how to access Binded gmail, im30, can't access primary gmail, it means I'll..

What happens if forgot how to access Binded gmail, im30, can't access primary gmail, it means I'll lose my base? I'm in trouble now? Changed phone, because it's destroyed phone, impossible to open and use anymore. And I install game on new phone, access base with im30 gmail and password, problem is I forgot how to log in my gmail outside game, my primary gmail, what destroyed in my old destroyed phone, can't remember steps verification things protected gmail, but it's old enough that I don't remember how to access it, or to recover what was details before wrote them in old phone notepad book, and now I don't know them.. Can game support help me? I still have access to game, but I don't want to lose it soon. I'm desperately need some help. Please