horriblewarning:

dear people who want to break the habit of interrupting others: when you interrupt someone and they stop talking, do not say what you were going to. apologize and ask them to continue. 

if they say “it’s fine, you can talk,” tell them “you were talking first,  i interrupted. go ahead.” i know that it is difficult to stop interrupting in general, but start by trying not to allow yourself to benefit from it.