Confusing Words: Be Used To and Get Used To - English Grammar

In this video, Alisha answers 4 questions. - What is the difference between "to" and "into"? - I can't understand the difference "be used to" and "get used to", especially in the past tense because there is no continuous tense in Russian. Can you give me some advice and a couple of examples? - What is the difference between 'consist of' and 'include(s)'. In what situations can I use these words? - What does the expression ""have a blast"" mean?