when i started creating my own videos at first i had this problem.i was thinking whether to use "I" or "we".i tested different terms in different videos.and i noticed that when i use "I" it tends to sound more formal teaching or the formal way of speaking to your audiences.it feels like as thought you are a school teacher teaching your students.

and when i use "we" it sounded more friendly and warmer towards the audiences and listeners.and it also build the relationship with them because when the word "we" is used it is showing more than 1 people are involved in the process,so it is like holding them by their shoulder and teach them as though like you are really standing beside them to walk hand to hand in teaching your knowledge and skills to them.