Can you tell me how to recover from uninvolved parents as an adult?

Get over it, move on. There comes a time in all of our lives where the experience of living, its opportunities, the wonderment inspiring nature of the universe, our existence in it, and the potential to love and be loved, take priority over perceived slights of the past. Try exercising intellect over emotion, and learning to exist in the here and now. Age 36 is a good time, waiting till you're on your deathbed is not!