Help with my iPhone 8 plus?

Help with my iPhone 8 plus?

Added (1). So I got my iPhone 8 plus from a seller on FaceBook for $250 on February this year. It's a huge upgrade from my iPhone 5s that I was using for 5 years. He said it's only been used for like 2 months.

Added (2). It has little scratches on the screen and a tiny crack on the upper right edge of the phone and it didn't come with the full accessories but it's ok because that's the best offer for an iPhone 8 plus.

Added (3). Everything seems fine and it's really fast and one thing I love about it is the battery capacity. I could use it all day and the battery would be at 60/70%. The only thing I kind of don't understand is the battery health.

Added (4). It's already at 90%. It doesn't quite make sense to me since he told me he only had it for 2 months but he didn't tell me if he got it brand new or from a previous seller.

Added (5). That tiny crack obviously tells me that he has dropped it maybe once. I'm assuming that affected the battery health really bad, didn't it?

Help me with a few things?

Since 7th grade I have wanted a iphone and 9th grade I used a flip phone because I was in high school, and then when my mom got my dads old iphone 7 plus I got her old iphone 6 early before 10th grade started because my posture was wonderful, and that is how I was able to get a phone because my posture has to be good to have a phone. I have had my phone from July to the end of October because November I lost it because of my conversation skills were terrible and that has been approving really well in the past 3 months I have had my phone gone for. Next was my posture also known as body language which was another one I got in the end of December I had to work on, but it was not going well until my Mom and Dad said I have four weeks and I could have my phone back which was the last two weeks of January and the first two weeks of February. When the four weeks were up I asked if I could have my phone back and my Moms same answer to me if no because your posture is not good and this her way of telling a lie to not give me my phone back. She also says to me there's not set date or time that you will get your phone back because you will get your phone back when your dad and I say so. What should I do because I really want to talk to my friends not just my one friend through our school email and I don't want this to go through my summer where I can only hang out with one of my friends not any other of my friends because my mom is still trying to keep my phone from me. Help me out.

Added (1). Help me out with what to do with my posture in a week or a week and a half and how to get my phone back.

Is it worth dropping Netflix and getting Hulu?

I think Hulu wins me over in terms of content as I'm more of a TV show person. And Netflix is starting to lose my interest because they are slowly replacing all their content with their own exclusive shows and movies. Don't get me wrong, I think Netflix has some great exclusive content. But I don't want that to be the ONLY thing they have and from the way things looks, it seems as though they are headed in that direction. Not to mention their $2 price increase doesn't further convince me to stick with them.

My only gripe with Hulu is that I heard it doesn't support 5.1 audio on my Roku, so everything will be sent via 2.0 to my receiver. So no more surround sound for me. And also, I don't think Hulu allows you to download their content on your iPhone app and watch offline. I really like that feature on Netflix as I sometimes watch video when I'm at the gym or on a very long commute.

Does anyone here feel that Netflix is worth dropping and replacing it with Hulu?

Why won't photos load on my iPhone?

I've deleted a bunch, and turned off optimising storage on settings, and they still won't load. The iPhone is a 6s if the mat is of any use!