I am going to lose it. Please help me I am desperate

I can’t function without sleep my sons been waking up every 3 hours at night and I’m so done. I have a headache every single day and I’m just overall a bad person to my husband and I feel like I cant be my best version because of the lack of sleep. This can’t keep going on.

Yes I know about the regression at 8 Months and yes my son has 6 teeth but is there ANYTHING I can do to help him get back on track with sleeping longer than 3 hour stretches?

It’s crazy how a baby not sleeping is really starting to affect my mental state and my marriage