Bitlocker questions

My Surface Pro Laptop which runs on Windows 10 was working fine. I closed it and later when I opened it up it would not run.

I eventually made a USB drive with Windows 10 backup files and followed the instructions I found online on how to restart the computer.

It asked for the Key Code ID which I found at my Microsoft account and entered that.

I thought everything would then work. I had to use the Command prompt to enter commands, but, then Bitlocker asked for a password.

This is where I am very confused. I entered my laptop's password and it didn't work.

I tried to find out what password exactly it was looking for. Some sites called the key code ID the password and another claimed that it was the same as my online Microsoft Account password, which I tried and which didn't work. Another website said it would be the original Microsoft password when the account was started so if the password had changed you'd have to go back to the original. I tried a bunch of my old passwords after that (I didn't remember off hand what the original password was) and none of them worked.

I worried that there might be a limit on how many password attempts I could make and stopped.

I tried to get some clarity from the Microsoft forum which didn't answer my questions and basically suggested deleting everything and reinstalling Windows 10.

So basically, my question is about the password. I don't recall making a specific password for BitLocker as I never even heard of it until it blocked me from restarting my computer.

Is it the same as the laptop password?

Is it the same as the Microsoft Account password either the latest or the original?

Is it an all numbers pin type password?

How many password tries can I enter? Is there a limit?