Parenting Fail??

I am not having the best of times with punishment for B.  Lets just say I am the bad cop in the family and I suck at it.  B is testing every limit right now and is very hyperactive.  We are not sure if the hyperactivity is a phase or something deeper but we will have to just play it by ear. 

So far in the last week he has broken a computer, a pair of 3D glasses and a lamp.  Now I know you are thinking they should really baby proof but come on a lamp on a table does not fall under we did not baby proof.  He did not throw something at it or knock it over on accident he just pulled the table down.  I was so stunned I just didn't even react.

He used to be a headbutter and biter but I thought we were out of that phase till the last few days.  Last night I ended up with 3 bites and the kid does not just bite and move on he bites like he is eating caramel and pulls off. Oh my reaction the first time it happened was not pretty.

Yes I spanked him on his diaper, Ugh how I did not want to be that mom.  And then I sat him on the chair for time out for 1 minute.  He screamed and cried through the whole ordeal seemed to get it and then I explained to him in a calm voice that he can not do that it hurts people.  A few hours later he did it again. 

I can not seem to think that his behavior is a reflection of my parenting.  I am really starting to doubt that I am any good at this or that I should be allowed to have any more children.  Even my mom said she would not want a second for me at this moment because my hands are so full with B.  I am trying all different things to see what works with him and well hoping we find a solution.

I wish this was a time I could blame hubby but with him at work all day I know this falls on to me 5 out of 7 days a week.  I think he gets right from wrong being that last night after punishing him he followed me around till I gave him a hug and told him it was ok.

I don't know if it is normal for an almost 17 month old to climb anything he can, destroy a room in a minute flat, prefer to feed the dogs instead of himself, head butt any surface (even those that make me cringe), growl, throw things.  Is this the terrible 2's? 

I mean there are many times he is sweet and cuddly and so lovely but then there are times when I think he is a gremlin and we should no longer get him wet!!! 

I just hope sooner than later I get some sort of sign or reassurance that I have not failed as a mother and that it is very normal for little boys to be hellions when they are toddlers and not grow up to be cereal killers!