Dictionary of Occupational Titles (DOT)

If you can qualify by meeting or equaling a Listed Impairment, proving that should be your first priority. It doesn't need to be addressed in these forms, btw.

If you won't meet a Listed Impairment, then you should try to determine if you qualify via the Grid Rules. You may or may not.

The last way to be approved is with the 5 Step Sequential Process. It's unlikely you'll be approved this way without going before an ALJ. This can take 2+ years.

It really doesn't take that long to get through the Blue Book. It might take a day. Better to take a few extra weeks and do a thorough job, than doing it quickly and drawing the process out for years.