Im on step 5 and im not sure how to
5. Create a dsdt.aml file with the 'iasl -oa dsdt.dsl' compiler directive. '-oa' disables all optimizations found necessary to get working solutions. It is unlikely this will succeed first time, as the compiler is very strict. In general warnings are acceptable, but errors may require some fiddling. Those will need to be corrected with common patches in Common DSDT patches for Ivy/Sandy/Haswell laptops, How to fixed DSDT errors? (kizwan). Consider asking for guidance at tonymacx86.com DSDT forums. DSDT editting alone could have it's own forum. Then try compiling your DSDT again.
iasl -oa dsdt.dsl