Should I do this?(ACL brace)?

So i tore my ACL in November and had surgery in mid November and just started playing soccer again last week. This is the second time I tore my ACL. I have a Donjoy Defiance brace and my orthopedic surgeon told me to wear it at all times, but my school has an athletic trainer and she told me it puts me at a greater risk to tear my ACL with the brace, then with out it. I know I can run and make faster movements with out it. I'm kind of scared to paly with out it on, but should I not wear my brace.