I think this thread might help: Twist out on 3b long hair with layers - Updated!
You'll probably need an elastic on the end - maybe those silicone (clear) ones they sell in packets of 10,000 (okay, maybe fewer) because they become invisible when you put them down. Hair which doesn't have a determined curl won't hold them in place on their own.
These will likely give you the results you desire. I've tried twist outs but my hair is too fine and there's not enough texture for the strands to grab on to each other so it was an epic fail
Buuuut...bantu knots are great if you're not planning on sleeping in them (I can't) and DON'T brush them out. Simply finger curl and go Good luck and post pics if you try them!
fine, medium-low density
protein loving, porous, elasticity ?
Co-wash: Tresemme Perfectly Undone LI/RO: GVP Conditioning Balm, Jane Carter Solutions Nutrient Replenishing Conditioner Stylers: KCCC, AG recoil, CurlKeeper, As I am curling pudding Protein treatments: Aphogee's Keratin 2 minute reconstructor, and Colorful neutral protein filler
Loves: aloe, glycerin & polyquats even in neg dews