When will this end!?

We are currently going through leap 6, 8 month sleep regression and teething!! I have literally just gone back to work and all this has been thrown at me. He used to sleep right through the night before this. Now I am dying. It's so hard to work on not many hours sleep. Last night he was awake most of the night. He had 3 hours solid sleep (so did i) before waking again. How long does this last? Please tell me not much longer? I would say we have been going through this for just about 3 weeks now. 😭