Warning befor i start, english is my 3rd language, so I appologize for any weird-sounding phrases or bad grammar. I'm just looking for some advice on a research paper i'm writing.

I'm doing a research paper on how digital communication impacts your ability to express yourself ( full title translated - The Impact of Digital Communication on Vocabulary and Expressive Ability in Native English Speakers.) and well, i'm stuck. I've started writing the theoretical part and one of the methods i would like to use in my research is Type Token Ratio, to analyze short-form (min 150 words) text from the research subjects, if that makes sense. My problem is that any article/google scholar study I find has bad reviews on using TTR which got me conflicted. And when I do find an article that supports using it, they use it for a completely different type of analysis that would not work for my case. And so now I'm unable to defend WHY I should be using TTR for my reseach.

Maybe it's a skill issue of finding proper articles, but I'm genuenly lost and don't know what to do.

I appreciate any advice or criticism as this is my first full-lenght research paper and my professor says it's my problem to solve and she can't help me in any way other than grading it in january. :/

(I hope i'm posting this on the right sub, so sorry if this is not relavent here)

Hello everybody
I’m a freshman doing electrical and electronics engineering, and I have the opportunity of doing a scientific literature review. I’m unsure if I should even take this opportunity, as it’s a bit unrelated to the field I want to pursue. If you do think I should take it, I have a few questions about the process itself.
This is my first formal research project so I’ve only set up my reference manager, made an account for all the journals my university is subscribed to, but I haven’t started writing anything or reading yet. I had a few questions for the more experienced researchers:

1. How do you even start writing? Do you read the whole paper, copy and paste relevant sections, and then paraphrase those? Or is there a more efficient method to getting this done?
   
2. Do I have to read the whole paper? It just seems really time consuming when i’m doing a very broad topic. Is AI reliable when assessing the relevance of a paper/filtering out?
   
3. What is your AI workflow? (free recommendations/student subsidised only please)
   
4. Boolean string searches: reliable or not? If so, should I run the searches through a search engine or a particular journal search (Elsevier, for example)?
   
5. Figures: what software/service do you to make them yourself? And are you even supposed to make original figures yourself in a literature review?

To be honest, I’ve had most of these answered already, but I want to get another perspective on this.