I don't know how your feel about lossing your bff, I never had one, I have always been alone with no one to really talk too, except my dogs and other animals. If you have a dog or even your horse they will listen to you and understand your feeling and help in there own way. Better yet, you have this group to help! Give your bff's mother a chance and maybe you can talk with her, to clear up the problems, adults are sometimes blined and don't see things clearly and acted in fear of the unknow. Things will get better soon for you!
Smile and go take a long ride to clear your head.