Happiness + Sadness + .... + ... = "Neutraliness"

So the question is: What would you feel if you put in a blender some feelings and sensations like: Happiness, sadness, frustation, confusion, pride, anger, disappointment, stress, impotence and then turn it on ?? All of this will get (Quite fast) mixed, obtaining weird sensations and obviously weird states.
The problem here is that I'm mixing of all this at the same time..., what doesn't allow me to process each thing separately or at least think in future what would be the result (bad thing) expecting the unexpected. I would prefer just to add sensation by sensation, taste what it tastes like, and then add another and another and so on.., having almost a total control over the mixture/situation or at least know what to expect or how to act, what is kind of complicated, because in real life sometimes you can't control when/where the situations are going to arrive.

The result of all of this would be and is something like being in the stratosphere, I don't feel nothing now, it's like a neutral state, and is because some ingredients crash with other ones like when you have two numbers let's say 3 and -3 and then you add them 3 + (-3) = 0. Now, if we replace the 3 for hapiness and the -3 for sadness we would get: (hapiness) + (sadness) = ?.
To resolve this equation first I would to add a new feeling called "neutraliness" and the description would be something like when you're tired enough that you don't feel anymore pain even if it's present, when nothing is important to you any longer...., it's like if you weren't feel anything. Just living.... In other words, the best explanation for these are the maths. A 0 (read it as zero) is the best answer for the equation.

So I get:

(hapiness) + (sadness) = 0 (read as neutraliness).

A Zero..... a big Zero....