How to Improve at Bulet chess

I want to get a rating of 1500 or higer at bulet chess. My current rating is 1321. I like 2 minutes with 1 second bonus. I would like to know how to get better at bulet chess in spefic things such as:tatics,using a certain opening. And how to study to get this rating.  Help would greatly be appericated. Thank You

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