I follow the tutorial above. The lady who did it explained everything so well and really pushed for making hyper realistic things have some randomized flaws in order to make it look more natural. At almost every step she layered noises and blended multiple nodes.
The major issue I ran into was using the blend nodes to make sure the two types of fabric layered properly with the pattern mask. I ended up needing to adjust a lot of levels and the map strengths to keep it looking like it had some depth.
Something that I would like to explore more, is making my own masks. The tutorial mentioned using various methods to do so such as in photoshop or procedurally.