Forgot old iPhone SE password, cannot set up new tasks

So years ago I used to have the old SE and I wound up locking myself out of it bc i didn’t remember what the password was (I ended up typing it in wrong when I was setting it up.)

Now every time I want to do something (like get my backup from my Apple Watch or finish setting up my account) it tells me I have to type in my password from my old iPhone, but I actually don’t know what it was.

Is there any way to get rid of the password or am I just screwed?