I have been working on research projects since age 15 and here are the tips that I often share with my friends regarding research project application.
How to approach the whole process It is normal to experience frustration because honestly, it is not meant for someone who first joins the field: 1. it is a far more natural process if you have been reading papers in the field for 1-2+ years and much easier to articulate why the work done by the researcher is important and interesting (and what skills do you bring to the table) 2.