Anyone else's 1 year not sleeping through the night?

My son just turned 1 and he has yet to sleep through the night. He is EBF ( of course now he eats food too) and I think this has something to do with it. He is my first baby and I have really "spoiled" him in many regards. his whole life as soon as he wakes up at night, I pick him up and nurse him to sleep. so I think now he just doesn't have good sleep skills - like putting himself back to sleep..... he will wake up 3-5 times a night! pretty much always passes back out after the boob but sometimes he fights it. he has also been doing a lot of teething ever since around 7 months. I AM SO TIRED. I literally have not slept through the night in over a year. I hate pumping so it is always me who gets up. I am 9 weeks pregnant with baby #2 and my fatigue is so intense. Any advice???? I want to wean him from night feeds but how???? I can't do CIO, just literally I cannot listen to him cry for more than a couple minutes.....