iPhone 6 replacement screeen

My iphone 6 screen no longer works properly. This occurred after I replaced the battery. One important thing I should note is that the touch part for the screen was having problems for quite a while before this happened. I just never bothered looking into it because the problem was so intermittent that I thought nothing of it. The touch part now barely functions and there's some weird flicking going on. I'm on a tight budget and don't want to pay a ton of money to get it fixed. I'm past my year warranty unfortunately. I found a screen digitizer on amazon for $45 that doesn't include the home button and camera. This was the lowest priced on amazon I could find that didn't have poor reviews.

https://www.amazon.com/dp/B01G3R4ZRM/ref...

Obviously I'm gonna need to use a guide here to help me do it and I am up for the challenge. I did successfully replace the part that includes the headphone jack, charge port, mic, etc as well as replace the battery. If someone might know of one that is decent quality that isn't as expensive, that would be helpful. Also, something that I can easily return if it doesn't fix the issue (if it's an internal component that's damaged instead).

Also, any tips to avoid damaging my phone? Should I not touch anything with my bare fingers even after the battery is unplugged? Should I wear latex gloves or something?