how to fetch data from database

Hey, I'm new to wasp and react. I have been trying to fetch data from the database (just like the already built in admin dashboard but from a different model in the DB). I have already created a model in the database. but was unable to get it to fetch data. its not the coding part that I have the issue in, its on what files I should make changes to get the job done. Hope what I told make sense. It would be great if you can help me out with the walkthrough of getting this job done!