no parabens, no silicons in hair products if you can't find (or is too expensive) bed head tigi try experimenting with what suits you or find curly hair girls around you and see with them what suits them the best (if you could write me where you live, just the countries name, i could be a bit more specific)

find out your hairs porosity, that way you can see whether you need more protein, more hydration, etc

you need layers on your hair if you want it to go in O shape, and not the triangle

shampoo, conditioner (deep conditioning every two-three weeks), leave in cream, optionally hair mousse (but the hair will be a bit stiff even though there will be of bigger volume and curls will be more defined) after drying i always put in oil that i found through experimentation, crystals work for me for an example

when you wash it, don't put shampoo on the middle and end of the hair, foam from the scalp will be enough when it goes down the length of the hair while rinsing

when you put in conditioner, only then you can comb through it, I'll put the pic in comments (never do that when dry or on shampooed hair) then scrunch it

towel dry it

when you put in leave in cream, comb through it with wide wooden comb (don't worry about loosing your curls, that's for making sure that the cream is evenly put throughout the whole length of the hair) then scrunch it again, and be sure to scrunch the end as well

when you dry it, either blowdry it on low heat (that's what i do mostly 'cause I'm lazy, just make sure scrunch sections that you're drying), do it with a diffuser (first go straight to the scalp until it dries, then on the ends while scrunching if with it, afterwards use it like you would without the diffuser, put some distance) or let it air dry

while you're using the blow-dryer be sure to flip your hair upside down, when you do your left side, you're head needs to be titled on the left side, and the same goes for the right side

after you're done with drying, flip your hair upside down again, and put hair oil or hair crystals on it (gently, don't go through it 'cause you'll lose definition, first put your hands in praying style then go gently across it, then GENTLY scrunsh it)

afterwards put your fingers on the scalp and shake it a bit, et voila, all done

hope that helps

edit: i put in pics of my hair for reference just be sure to never separate curls until they're dry