I think I need God for very little because I seem to be able to do most things on my own—eat, sleep, shop, meal plan, settle arguments, keep up relationships, google questions, go to the dentist, etc.
If God offers me everything I need—all wisdom, power, and love—through a relationship with him (this is not an instantaneous acquisition but a daily communion), I can have all I need, if I remain in communication with him. Not only that but I have to receive what he has to offer. I can't accept what he has to offer, if I don't think I need it. In fact if I only think I need God for difficult relationships and sudden car trouble and money issues, I shall accept very little from him.
It's like coming to a fountain to get water. If I bring a tiny vase, I shall only take home a vase-sized amount of water. If I bring a bucket, I will take home a bucket. And if I come with a totally empty-self, I will receive a whole-person's worth of living water.