I looked for Cambridge dictionary to know the difference between stop-verb-ing form and stop-to-infinitive.
We use the -ing form after stop to indicate that an action or event is no longer continuing:
We use the to-infinitive after stop to indicate that someone stops doing something in order to do something else:
So here's my quesiton.
I want to stop using "I" at beginning of sentence.
I want to stop to use "I" at beginning of sentence.
(When I start to speak and write in English, I always express that "I am, I was, I can," and who know what else any other verbs. It make me that I feel like that I always try to introduce myself.)