Will a text be sent if I deleted it before it was delivered?

I have an Iphone 8 plus, and I sent a text and i had little/no service. I had "No Service" and then one bar (No LTE or 3G) it was just one single bar. I then sent it as a text message, but the blue line on the top of the screen was still there trying to send it. It said "failed to send text message" but it didn't have the "!" next to it. I then got fed up and deleted the one message, do you think it was still sent or did I delete it?

How can I make my phone volume louder?

I have a Huawei p30 lite and whenever I connect my Bluetooth earbuds to them, the max volume just isn't super loud, even when it's all the way up. When I connect those same earbuds to an iPhone, they are significantly louder. How can I make it louder on my Huawei phone without an app? I tried apps but it just made it distorted.

Can't Log into instagram:' ?

One of my instagram accounts got disabled which is fine however now I can't log into my main account on my iphone with out it saying ''sorry there was a problem with your request'' my log in works on other phones and my pc though… Any help? Or idea on what's going on?

Question about upgrading my iPhone with Sprint?

The last time I upgraded my phone, I got the iPhone 5c, and it was a flat $99 when I extended my contract another 2 years.
I've never had to deal with the extra phone payments each month that most of my friends and coworkers have (they have way newer phones, lol).
So, my question is this… What can I expect when I upgrade? I'll be upgrading to the iPhone XR.
I realize there will be an extra 30-some dollars, and probably an upgrade fee. Anything else? What kind of case do you recommend? I'm leaning toward a wallet case. Do they give good protection?

How can I prevent easy screen burn-in?

When aim talking fast, I'm talking 10 minutes on around 3/10 brightness on my iPhone 6S LCD screen. I was just playing Fun Run and the control buttons had a ghost image on the screen after TEN MINUTES! Anybody have any solutions? Do I just need to replace the screen?

Added (1). Note: This has never occurred before today, and my lighting hasn't changed from the norm.

Would it be a good purchase to buy a MacBook?

I want to buy a MacBook because I like to think of myself as team apple. Please don't make fun of me but I have iPhone, iPad, Apple TV, and I even have an iMac but it's not portable. I just always hear people saying the MacBooks don't age well but I never hear it from someone with a MacBook. Even if I have to I don't mind buying a MacBook with all the extra trimming but how much use will I get out of it.