I need some help from mamas with toddlers. Pretty sure my son is going through terrible 2s , and it's getting unreal! My…

I need some help from mamas with toddlers. Pretty sure my son is going through terrible 2s , and it's getting unreal! My son WILL NOT listen to me at all! I tell him not to throw something and he will still do it, I tell him to be gentile with our puppies and then he'll push them. Normally we would be able to brush his teeth and read a book and he knew that it was time for bed, now it's a battle to get him to brush his teeth, use the toilet, and go to bed without him screaming and crying. Also when I tell him "no" he will scream at the top of his lungs. He will even do this in public! Like a blood curdling scream! I've tried spanking after warnings, I've tried to ignore his fits, I've tried to speak calmly but he will pull away and scream more. I'm at a loss of words of what to do or say. I don't wanna hear my boy scream and cry. I just want my boy to be happy and calm. I see all these other toddlers acting amazing in public and listening to their parents and when I see my toddler act out like this I feel like I'm doing something wrong. Please HELP ME!!