Hi MJopson, welcome to CWE!
And hugs to you, you have a lot on your plate right now. Being a parent or caregiver of someone with epilepsy can be a particular kind of a stressor, especially with new onset seizures.
Generally speaking, when an epilepsy diagnosis is recent, it's best to be a bit conservative in terms of activities until you know how well the seizures are controlled, and have a better sense of how any medications are working, both in terms of side effects and efficacy. Hopefully your child's neuro can provide specific advice in this regard.
Everyone is different, but in my case I don't take any precautions except what would be reasonable for someone one of my advanced age (57).
I am fortunate that my seizures are currently fully-controlled with medication, so the seizure risks of any particular activity are relatively low. However, because I do have a lower seizure threshold than the average person, I try to get plenty of sleep, hydration and balanced nutrition, and I don't take psychoactive drugs. I don't go bungee-jumping or scuba-diving, since in different ways those can potentially stress the brain. Sports or activities with high concussion risk would be off the table.
You don't say what age your child is, or what activities he/she might ordinarily be expected to engage in. Are there specific ones that you are worried about?