Hi - you need to see a different GP. Even the one who had you on 150 should have addressed your nutrient results.
You are severely deficient in vit d and need loading doses from your gp. With that it is important to take vit k2-mk7 and magnesium.
Ferritin - as you are below range your GP should treat this. If you are given iron tablets be sure to take 1000 vit c with each one to head off gastric issues and increase absorption.
Your folate and vit b12 are both bouncing along bottom and will be causing issues, but your GP probably won't address as they are in range. Both need supplemented.
For nutrient issues, SeasideSusie is our hero. There are loads of posts on this topic under "related posts" to right or below if on phone. Look for any answer by Susie for much more detail.
The nutrient deficiencies can be caused by good intolerance that are very common with hypo - your pattern suggests you may have hashimotos auto-immune , as do 90 % of hypo. For us, a trial of a strict gluten free diet for at least 3 months is recommended to see if it makes a difference.
The experts in this group will provide you the help required to get better - hang on in there.