I am an environmental engineer and I want to create an application that can perform GHG (Greenhouse Gas) calculations. Here is what I envision for the app:

Input Data:

Users (companies) should be able to input all necessary data either manually or by uploading a spreadsheet file.

Calculations:

The app should perform GHG calculations based on the input data.

Report Generation:

The app should generate a PDF report that includes:
The formulas used for the calculations.
Documentation on the methodology.
Graphs to visualize the data and results.

My Background:

I have been studying software development for 2 years at my college.
I have a basic understanding of programming but I am unsure how to start this project.

What I Need Help With:

Frameworks: Recommendations on which frontend and backend frameworks to use.

Database: Suggestions on which database would be suitable for this application.

PDF Generation: Advice on libraries or tools to generate PDFs with formulas, documentation, and graphs.

Graphs: Recommendations on tools or libraries for creating graphs and visualizations.

General Guidance: A starting guide or an outline of steps to follow for developing this application.

My Goal is to have a clear path forward with specific technologies that will help me get started on this project.

Thank you!