Mine is not dissimilar, I spent a long time trying to get it right and have been really happy with it for the last few months. It is now a bit longer than yours and I think that might help you with the shape. I use Aussie Frizz Miracle shampoo and conditioner, which are brilliant for defrizzing and giving a bit of definition. I just wash and condition it, comb with a wide tooth comb and leave to dry naturally. Could I suggest changing to a more side parting, ditch the straighteners, resist the temptation to use a brush on it at all and grow it a bit longer, but keep layers (my shortest layer which includes grown out fringe is about to the end of my ears, the longest is 2-3" below shoulders).
It's a bit like mine. I find a chin length blunt bob very easy to look after - not too much hair to blow dry straight, or allow to dry naturally for a wavy look that is still neat. When I have had layers in the past, the short ones stick out and look untidy. You're not frumpy, BTW!
Thank you WhoKnows, is the Aussie stuff expensive? Can you get it from Boots/Superdrug? I only brush my hair just before washing, otherwise the frizz is terrible. I have had a side parting in the past but never been very happy with it and my hair really resists anything but a centre parting
The Aussie stuff is about £4 a bottle from Boots/supermarkets, you can normally get on 3 for 2 somewhere. If mine is looking frizzy in between washes I sometimes use a quick squirt of Boots Botanics leave in conditioner or Boots Curl Creme. I avoid all products containing silicones, you might have seen reference to this in threads about the Curly Girl method. I never though I suited a side parting, my hairdressers suggested I try the other side which I had never done and it was much better!
Before I saw your age on the other thread, I thought 25. Some people are just rubbish at guessing ages.
I know lots of people avoid silicone stuff on here but it just doesn't work for me (and I have similar sounding hair to yours). The very best conditioner I have tried recently came with Superdrug's own semi-permanent hair dye. And the tube you get is big so could easily cover 3 washes? It's worth buying and ditching the dye if you don't use it.