YouTube is a pretty good resource for help creating your own music and sound effects (foley ideas etc – also google) but writing can be a little more difficult. Pretty much with all this stuff you have to practice as well as researching the material: Oh look here is a thing someone linked at me once! Speaking of linking to things isn’t it time you linked to that 19 Nocturne Boulevard. Stuff you were gonna link to that has the stuff about writing and audio techniques etc? The Thrilling Adventure Hour.