I'm sorry, my attempt was not to be vague or dismissive or to make excuses; this is just the reality I've known because I've never taken care of my hair in any kind of way like this since 99% of the tips I've always gotten are from stylists who don't know how to do my hair in the first place.
The shampoo I'm currently using is Suave Professionals Keratin Infusion Color Care Shampoo. Same brand of conditioner. I'm currently at home for the summer, so I don't often straighten my hair (even at school I found I didn't most often, I would just put my hair up and throw my baseball cap on). I'm finding that I straighten only for special events, like the weddings I have to go to this summer I mentioned in my first post.
I don't use anything else in my hair. I do have that Garnier leave in conditioner I also mentioned, but I find that makes my hair feel gross and sticky, so I've stopped using it.
As for straighteners, I have the InStyler and an older Straightener I've had for about six years, which, since my brother's girlfriend gave me her InStyler, I've stopped using almost completely.
That's literally all I use for my hair in terms of regular routine. The dye brands I use vary from dye job to dye job, but the colour is usually a burgundy.
Outside of straightening, I don't style my hair when it's curly. Because it becomes so frizzy when it dries, I feel like I look awful if I leave it down, so, like I said, I just throw it up in a bun or do some braids, etc.