Did it ever occur to you that it could be your brother fueling the fire?
If he has not breached his bail restrictions or peace bond terms, you have no chance of getting a restraining order against him.
Once the peace bond is over, give him a registered letter that you don't want any contact with him except for such and such purposes or through so and so. If he has learned his lesson he will respect your wishes otherwise get him charged again which you know is not that hard in our system.