Don't get suckered into those expensive products o.
find a good moisturizer (shea burra or coconut oil works for me sha.)
Depending on how short your hair is, wash and goes are the way to go ...nice headbands too.
I had to learn how to twist my own hair so I do a lot of twist outs.
I tried those products but they just didn't work for me or my hair wasn't at the right length for the kinky curly and co.
goodluck on your hair journey.