Advice on preventing breakage? Running out of ideas :(

My current shower routine is coconut oil in hair for about 15min before wash and then Amika strength repair shampoo and conditioner. K18 clarifying shampoo about 2x a month. Eva NYC mask. K18 bond repair about 2x a week. I have been blow drying my roots on low heat with my Dyson. I will also run my hairbrush through the ends and dry them about half the way (still on low heat.) Before drying I use Amika’s detangler and ogx’s protein bond repair. I’ll also add in some anika dream routine if my hair still feels dry.

At night I either put in Kerastase hair oil or Amika dream routine on my ends and Kerastase genesis serum on my roots. I sleep in a bonnet.

Other than that I don’t put my hair into tight hairstyles other than a looser pony to workout. I’ve used heat to style my hair maybe 6 times in the past 2 months. I got my root smudge moved up on October but I haven’t bleached my ends since August. I cut a couple inches of a few weeks ago and that somewhat helped but the problem just seems to be getting worse.

I realize I won’t get the thickness back until my hair grows out but I would really appreciate any tips on how to further protect my ends until then. I used to have the hair that hairdressers would comment on because it was so thick and long and I miss it a lot. I’m afraid to style my hair now and it’s just been straight, short, and thin for a while now. Thanks!