Thank you so much for all your input. Most of time is my 10y old

Definitely NO HEEL.  I don't want to use prong collar on her. Yes we spoiled her too much cause we felt bad for her : She was only around 5lbs when she came to us( she was about 3 months old). We just let her do whatever she wanted when we walked her-sniffing around, leading us runining. I'll try what you said and let you know.

Thanks again