Sorry but you lost me on this one! If my trackpad broke in 9 months I certainly would not wait 4 years to calm it broke within the first year and demand it be repaired for free. (Scratches head)
Well, take the case that your MacBook breaks two days before the one year warranty ends. This seems to say that you don't have to rush to the store before the one year ends, but the store would have to fix the MacBook if you turn up say a week later. It is of course wiser to go to the store immediately to avoid any arguments. Or send them an e-mail immediately that tells them your Mac is broken to have some evidence.
Everything was great until after a few months had passed the magsafe charger wire had started to burn and eventually it stopped working, i then had to wait weeks to buy another charger and when i got it the macbook pro wouldn't charge the battery anymore making it more of a desktop computer and very annoying as i wanted to use it for college.
That sounds like you continued using the charge after it "started to burn". Surely that is asking for trouble. And if you used your battery until it was empty and then didn't charge it for weeks, that might have damaged it.
I would go to the nearest Apple Store and let them check which parts are working and which are not (does your charger charge on a different laptop? Does it charge a different battery inside your MacBook? Does your battery charge inside a different MacBook? Only takes them ten seconds to check). Then go to eBay and buy replacement for whatever doesn't work.