I've got type II bipolar.
The depression side sucks, so I'm lucky the hypomania just manifests as boundless energy, racing thoughts, and an inability to sleep.
Going for a walk in the middle of the night actually feels quite nice.
The depression is much more manageable these days, CBT, some time with a therapist, and self exploration with psychedelics helped a lot I think. I still get the big downer episodes, in one at the moment and I hope it'll clear up in a few days.
What sucks is when a wave of paranoia or anxiety hits. As both those make coping much more exhausting.
But I'm alive, in my late 30s now, holding down a job, have a family, and often have people tell me that they think I'm a great parent.
So it's not the end for your son. Everyone's journey and path is different, and there'll be hard moments - but people are strong and we can find ways to push through and adapt.