What’s the difference between ‘am used to’ and ‘used to’?

[00:00:00]What's the difference between I used to wake up early and I'm used to waking up early? They sound the same, but they have different meanings.

[00:00:11]I used to wake up early means before I did it usually. For example, in high school, I used to wake up early, but now I don't.

[00:00:24]I'm used to waking up early means waking up early is normal for me. It's not a problem. It doesn't bother me. I'm used to it.

[00:00:36]So, question.

[00:00:37]What does I was used to waking up early mean?