When will I stabilize on this updose?

It’s been 35 days since I updosed from 14.275 to 15 mg of Zoloft and still miserable. My doctor prescribed me low dose mirtazapine for sleep so 3.75 and propranolol for my akathisia. I took both tonight and still can’t sleep. I don’t plan on continuing the mirtazapine as it’s not helping with sleep and don’t want to become dependent on another med (only took for four nights). Just looking for hope from others who struggled to stabilize after an updose that I’m almost there. I do have windows but the waves are still so horrific.