Behavior/Tantrums Liam is 19 months old and within the last month he has been really testing…

Behavior/Tantrums

Liam is 19 months old and within the last month he has been really testing boundaries. He climbs on everything and I'm afraid he's going to hurt himself and when I tell him not to he continues, sometimes if he doesn't get his way he will scream, he's been hitting and pulling on our dog and other little things like that. It's a little frustrating and I understand that this is probably just a phase but I also know he understands no and when I ask him more than 2 or 3 times not to do something and he continues I feel like he needs to be disciplined. I feel like he's took young for spanking and I honestly dont want to hit him. I'm considering time out but is he too young for that as well? Is anyone else feeling like the "terrible twos" are creeping up a little sooner than expected lol. How are you handling this? I need advice.