I have a new to me filly little over a year old. She don’t move off the flag or anything. Trying to start with her just free in the round pen and she just pays me no mind. Never had a young be so nonchalant.  I do know she was loved on a lot but never really worked with. She can be a bit nippy when she does not care to engage with what you’re doing.  Only wants to walk on a lead if lounged. I’m trying to start her on the ground before winter gets here in Michigan so she will be easier to completely start on the spring. Any suggestions?