If you're in a custody battle, you must understand that the court doesn't care how much time the child can spend with your grandmother or the new significant other- they're interested in the time the child can spend with you.

Carefully document the time you spend with your child. Go to court with the OPTIMAL documentation, charts, and graphs and demonstrate the extent of your parenting time and activities. Demonstrate to the court that you can and do spend as much time as possible with your child, and that you are actively parenting and taking care of your child.

The court's primary interest is an involved parent. Use OPTIMAL to demonstrate that in this case, that parent is you.