At different stages, my routine has been different:
0-10 weeks--treated my hair as fully relaxed, got my hair done professionally (flatironed, etc.) without a retouch.
At week eleven, I officially decided to transition. At week 14, I got my hair in two strand twist extentions.
Once I took down the braids at week twenty, I started treating my hair as if it were natural. If I had to do over again, I would have started this routine as soon as I started transitioning.
My routine is constanting evolving, and at week 35, my regime:
-Co-wash twice weekly, each time as a DT (with gold self-heating cap). Every few weeks I turn the co-wash in a low poo wash and then a DT. I braid my hair into six sections and unbraid each section to detangle. I only detangle after rising out a head full of conditioner and under running cold water. I use my fingers, then follow-up with a D4. I rebraid my hair after I detangle each section and I lightly detangle with fingers again while damp when adding my leave-in conditioner. My hair does not like to be manipulated while washing--I actually only touch/massage my scalp while I'm rinsing out the conditioner under warm water.
-I spritz my hair w/homemade moisture spritz twice daily and use a leave-in moisturizer. I also have a high potency essential oil spritz when I remember.
-I braid and roll my hair nightly (it's usually damp) and add pomade to the ends. Usually I wear a whole head baggie with a satin scarf.
-In the morning, I dampen my hair again and style it (usually with spritz, moisturizer, flaxseed gel and a little IC fantasia).
-I trim 2" every two months. Untrimmed ends make my tangles even worse (if that's possible).
-I don't do much to fight my natural hair's texture and inclination--sometimes the coils are really defined, other times not so much. Some transitioners do mind, but I don't mind: some breakage of the relaxed hair; some shedding; some tangles (my hair loves to tangle); clear visual difference between the two textures.
Hair stats: Mostly napps and coils (what is considered 4a); Thin trands, densly packed. Mostly spongy texture with cotton at the front and something else in the nape. About 3.5-4" of natural and about 10" of relaxed. Length near armpit at longest layer. Hope this helps some.