Well I have had an engine check light on for a few weeks so I hooked my car up to a computer today in auto mechanics at my highschool. These are the codes I got

Po201 injector 1?*
Po204 injector 4?*
Po304 cylinder 4 misfire
Po353 ignition coil c fault?*
Po354 ignition coil b

Anyone got any advice on fixing it? Anyone had the same issues?