"Used to" means you did something in the past all the time that you do not do anymore I used to listen to music everyday, but now I don't have the time. I used to have a job at the factory, but I got laid off. "Get used to" and "Be used to" are similar. "Be used to" means you are familiar with something. I am used to _______. ( So,) It doesn't bother me / It doesn't bother me anymore / It doesn't bother me now. I am used to being bullied. I am used to eating only rice everyday. I am used to going to bed early, but if you want to stay out all night, that's fine. "Get used to" means become familiar with something unfamiliar, good or bad. The most common phrase is Well, Get used to it! Mom, I don't like eating beans everyday! -Well, that's all we have now so get used to it! He needs to get used to the new environment. (A man starts to receive a higher salary might say:) I could get used to this!

I hope that these sites will help you to understand the difference. 1-http://www.passporttoenglish.com/Advanced-English/Lesson8/Grammar.html. 2-https://alicewwong.wordpress.com/2009/07/30/difference-between-used-to-get-used-to-and-be-used-to/.