Re: Changing Schools/ "styles"
Been there. Done that. Moving from hard to soft style dojo.
Hopefully, your teacher and seniors will be understanding and work with you through the transition. Which shouldn't be a problem. I think most people are used to working with beginners, even without experience who accidentally get a little rough.
You may also want to address this concern with Sensei. It's possible that he has worked through this issue with others.
Make sure that you are making an effort to be softer and do things thier way.
Check back in later and let us know how it's going.