An Econometric Approach on the Impact of Macroeconomic Instability on Financial Inclusion in emerging markets

I am having some difficulty approaching this topic.
More specifically, on the dependent variable (financial inclusion), what indicator available publicly that can be used?
What are the independent variables? and what indicators are available publicly that can be used? ( 5 minimum)
How many countries should be in this research and what are they and why are they used?
Here, I think panel data should be utilized (not sure).
It would be great if more than 15 sources are used.
Before starting, please share with me the data collected with their sources. Upon confirmation, it will be fine to proceed.
The structure is as follows;
Chapter 1 – Introduction
1.1 Background: 400 – 600 words ( with 2 references at least)
1.2 Problem statement: 300 – 500 words (with 2 references at least)
1.3 Significance and Contributions 100 – 200 words
1.4 Aim of study
1.5 Research Questions and Objectives
Chapter 2 – Literature review(2000+ words)
2.1 Introduction
2.2 dependent variable
2.3 independent variable 1
2.4 independent variable 2 and so on..
Chapter 3 – Research Methodology
3.1 Introduction
3.2 Research Framework
3.3 Hypothesis development
3.4 Research design