If you are not reading this article in English, I highly recommend that you turn off the automatic translation on your browser.
We use “I used to do something” when speaking about the past, in order to express that we did something on a regular basis, and that we don’t do it any more.
For example: When I was young, I used to cycle every day.
We use “I’m used to doing something” to say that we do something on a regular basis in the present.
For example: I’m used to cycling every day. (meaning that I do it on a regular basis, in the present.)
Note 1: In the form “I used to do something”, “used to” is a modal verb; whereas in the form “I’m used to doing something” the cell “used to” is an adjective.
Thanks for visiting YouGrammar.com – By Marco Cossu