Yes, but it’s not too hard to make one ridiculously long/complicated master password that is also memorable. It might take you a while to remember it — just keep it written down on paper somewhere private & safe and refer to it as needed. If you’re not being targeted then you’ll probably be fine.
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa is an equally long password, but much less safe than your example password because my password has far less entropy.