First time meal prepping

I’m 18M and planning on meal prepping for the next 3 months for my first semester at uni. What are some tips for a first time meal prepper? My budget is $50 a week. What can I buy with $50 and what can I do with it? I have stored in my fridge 5 or 6 raw chicken breasts so I can work with those. What are some meal prep tips for chicken breast?