Use = Utilize 
Use = purpose/value/point
usage = the act of using something 
get used to = get accustomed to (get adapted)
be used to = be accustomed to (to be adapted to something)

Nit-Picky English with Nika 

Use (verb & noun,) Usage, Utilize, Get/Be Used To - What's the difference? 

In this episode of Dynamic English, host Jessica Seely explores the art of negotiation. Learn key strategies for successful negotiations, including preparation, effective communication, and flexibility. Whether you're negotiating a business deal or planning with friends, these tips will help you reach agreements that work for everyone. Tune in to sharpen your negotiation skills and enhance your English language proficiency!

Dynamic English

Mastering Negotiations: Essential Tips for Success

Have you ever heard the expression you can’t teach an old dog
new tricks? Today I want to talk with you about this expression and ask whether this is true or not. Well, the answer is kind of confusing because it is, and it isn’t true at the same time. So what do I mean by that? When somebody says, “you can’t teach an old dog new tricks,” essentially, they are saying if you are older, you can’t learn new things. Now, I have a real problem with this because I have seen this type of mindset disproved so many times, including my first college professor who did not go to college until she was in her 60’s she ended up getting her associate degree, her bachelors and then masters degree and in her seventies was my professor for my very first college class that I ever took. I don’t believe the expression, “you can’t teach an old dog new tricks.”