I think I can't stop improving my knowledge. But why?

Why do I need to improve, more and more if this, in fact, leads me to dissatisfaction?

When do I feel satisfaction about what I know?

The problem is that I always feel as if I'm at the beginning. Even though I have covered a lot of roads: it's such as my knowledge is just a little.

I don't have a clear understanding of what I'm doing and the environment surrounding me.

This is the problem. Is it such clearness reachable or am I confined always in the field of approximation?

I think the last is the correct one.

What I know is always an approximation of reality and I have to make peace with this.

Improvement is always necessary but it alone is not enough. What I miss are meaningful connections. And If I don't achieve this, I will be always dissatisfied and improvement won't save me.