3 am wake ups- how do you fix it?

TSH - 8

T3 - 3

T4 - 0.94

Cortisol was normal.

I'm currently unmedicated but met with an endocrinologist and am about to start Tirosint (I've been intolerant to generic levothyroxine and NP Thyroid).

I used to have horrible insomnia but since working on regulating my blood sugar, I am able to fall asleep okay. Now, no matter what I wake up around 3am and CAN NOT fall back asleep. My sugar isnt high but I feel so wired. Has anyone else been able to sleep through the night with supplements or something? I used to use edibles but they started to make me more anxious 🙃 I have a calming wind down routine for the evenings and have been working on stress management but god I desperately need solid sleep...like yesterday.