I started writing down some actual code, and although I struggled a lot during the process, I think I figured it out.
I worked on writing code for what I planned in the previous writing, and I had some trouble in the beginning on how I use the db or how requests like post and get work.

I also made classes when necessary, such as for organization/volunteer information. Above is an example.
Of course, I made the requests to the database. Below is the code that brings information about an organization.

I’m sure I’ll find parts to change or add as I move on with the project, but for now I think I’ll start working on the frontend as well using React Native. I’ll make edits to the backend code when necessary.
I think this project is going great! I’m excited to move on to the frontend part.