I want to change my phone
so, in May 2018 (now it’s almost August 2018) I got iPhone 8 and in like two weeks after using it I began to have some issues like the phone just closes the apps by itself or just get hot so fast and I had some problems with the screen. So I went to an Apple service and they 'fixed it' by just reseting the iOS. I did it, too but then I had some issues again. So I got it back and it worked okay but now again I have some not that often iss with the screen when I have to touch a way too hard to do whatever I want. the bigger problem is that my phone gets too hot too fast and that’s definitely not okay because it burns in my hands for using it for like 10 or 15 minutes. And the battery goes down way too fast for a phone in 2 and half months. It's not like I can’t use iPhone, I can. My previous phone was an iPhone and also have an iPad and I know this software way too good and I know how to work with it. So my question is there any way of changing the phone because I want a bigger phone with better options and hoped I can change it. Any suggestions?
iPhone 8, iOS 11.4.1