Child won’t sleep day or night!!!

Please help me! I am going absolutely crazy. My child is waking up between 10 and 15 times per night. He won’t sleep anywhere but next to me in the bed. I swore I would never put my child in the bed with me, but I am literally by myself right now and this is all I can do to get by. We have done sleep training multiple

times. This time it is just not working. He will cry for hours on end. During the day the only time he will nap is when in the car seat. He just keeps standing up in his crib and crying. Help mamas! I’m desperate here.