How to survive in middle school?

I'm Miley, am from New York, 11, turning 12 soon and I'm going in sixth grade. So me and my friends had a conversation about middle school.
I need to know:
-What to wear?
-Teachers?
-Should I wear make-up?
-How can I be popular? (This was asked by my friend, not me)
-Boys and relationships? (This was asked by my friend, not me)
-How do I change my group of friends? My current group of friends is really boring and we're all going to the same middle school.
What about the teachers?
-Do most middle schoolers have mobile phones? If yes, which ones? Does an Iphone 6+ work? Is it okay for me to take it to school (we're allowed) and did you have one when you were going to grade 6?

I'm a senior in high school. But when I was going to middle school I worried about the same thing so here is everything to know about middle school
-it doesn't matter what you wear as long as its clean. Dress in whatever you think is cute.
- middle school is where people start experimenting with make up. Watch some make up tutorials on YouTube.
-being popular is hard because you have to please everyone and everyone likes different things. So just be nice to people. Be prepare for so much drama and rumors.
- You will not find true love in middle school. You may think you love someone but chances are it won't last. But you never know. K started dating my boyfriend when I was in 8th grade and here we're almost 4 years later. But don't expect things to last.
- you will meet a lot of different new people so if you're stressed about friends. Don't. Because you will probably lose touch the first year or two.
- any phone will work

Q1: What to wear? Anything really, casual something that you like.
Q2: Teachers? Teachers in middle school are alright, some may be a pain in the a$$ but most are just fine and want to help you out in your transition from elementary to middle.
Q3: Should I wear makeup? I'm a guy so I may not be the best at this, but I guess you can just not much go light on the makeup. You can also look at YouTube videos of girls showing basic middle school makeup.
Q4: How can I be popular? Be yourself and act normal. Don't act like a pompous d-bag or a crazy lunatic. Overall just try to be nice to people and you shouldn't have problems.
Q5: Boys and relationships? The majority of boys at this age are… Well immature and dumb. You can date them if you want but I would find someone mature.
Q6: How do I change my current group of friends? Well most middle schools have maybe 2 or 3 elementary schools that send their grads to one middle school, so maybe start talking to people from other elementary schools and they'll introduce you to their friends and yeah.
Q7: What about the teacher? (refer to question 2)
Q8: Do most middle schoolers have telephones? If yes, which ones? Is it ok for me to take it to school and did you have one? Whew, long question! When I was in middle I'd say about half the school had phones, and right now my little brother is going to 7th grade and says the majority of students do have phones, i don't know which ones but yes they do bring phones and I'm guessing an iPhone 6 Plus is pretty luxurious so if you want to show off or something it will work, BUT it is also worth a lot of money so if you do bring it to school take great care of it because even in high school I hear of people losing their phones. And I actually didn't have a phone on 6th grade but I got a little decent phone (it was a piece of sh*t compared to an iPhone but it got the job done) for 7th grade.

Hope this helps!