Insomnia exhaustion

I have severe insomnia and RLS. I'm sleeping 4-5 hours a night if I'm lucky and my legs are SO sore from charlie horses and having to move them constantly at night. I'm so exhausted I just want to curl up and cry. I'm a stay at home mom to a 2 and 4 year old so I have no choice but to keep going. I feel terrible for my kids, I'm so ragey and snappy with them and it's not their fault. Anyway, needed to vent! I'm just so tired and so over this pregnancy. 😭 For the love of God, December, please hurry!