First of all they wouldn’t know there’s nothing worthwhile until they got in. But most importantly if you’re using the same password for everything since 91 there’s around a 0% chance that password hasn’t been leaked. This means that a random person can have access to everything that you have that’s not 2fa protected without you even noticing. You said that no one tried to get into your things, how would you know? Most places don’t let you know when someone login successfully, and a lot of other places do so with an email which the attacker can quickly delete.
If you really use the same password for everything since a long while back anyone who knows your email address can get into anything yours, getting a hold of one of those password dumps is really easy, especially older ones.