Why doesn't my iPhone 6 turn on after screen replacement?

So my screen was completely cracked a couple of weeks ago, and I decided to replace it myself, because I heard it was easy and cheaper.

The display isn't the problem, and I know that because both (my original and new) displays don't "turn on".

So I decided to read some questions and answers to see what was up.

I read that you have to hold the power, home, and volume up buttons to get to a screen that tells you to plug your phone into iTunes, and restore it.

So, I did just that, and iTunes couldn't update the phone, nor restore it.

So, I kept reading. I found that you have to unplug the front camera cable, and it should turn on.

I did unplug it, but it wouldn't turn on.

I plugged my phone back into iTunes, and it couldn't update, but it could restore, so I decided I should restore my phone.

After restoration (factory reset), it worked fine, except Touch ID wouldn't work, which I would deal with later.

The next night, however, I forgot to plug in my phone, and my phone died.

Now, my phone is doing the same thing, it is stuck in a complete boot loop.

I got it to the restore screen, but I don't want to restore it again if I can help it.

Essentially, my question is...

Do I keep restoring my phone when it dies, or is there another way for me to activate my phone? Any advice would be useful. Thanks.