Hi, I just adopted a 9 month old GSD. I've been taking her out on our daily walks and she constantly pulls on the leash. I've tried a regular collar with the leash and she pulls so hard, I'm scared she'll damage her throat. I've been using a harness but she also pulls with that. I don't know what to do. She also barks at every dog she sees, how can I get her to stop? Thanks in advance!