How Can I Control My Puppy’s Behavior?

She is a 2.5 month old cockapoo, we are house training her so she is kept in a kennel but once she is released she goes haywire, biting me running non stop chewing up everything, I try taking her for walks but when I put the harness on her, she immediately tries to remove it, Please help me train her!

How Can I Control My Puppy’s Behavior?

She is a 2.5 month old cockapoo, we are house training her so she is kept in a kennel but once she is released she goes haywire, biting me running non stop chewing up everything, I try taking her for walks but when I put the harness on her, she immediately tries to remove it, Please help me train her!