Can anyone help me how to gather relevant data to be use in yizing using multiple regression ysis?

You start with the problem, and your hypothesis of what you will find. Then you identify your dependent variable (the one that will move), and figure out 3-5 independent variables (the ones that will move the DV). Each IV must be at least a bi-variate (have some variation, at least two data points). Such as: gender: male or female, socio-economic status: low income, middle income, high income.