How can one still be interested

1. How can anyone remain interested in this world?

I lost interest years back and have been trying to find it back since. But more and more I am led to believe that regaining it is not really possible. With random feelings guiding one's actions and no standards of right or wrong except that which makes one feel good being right, why act at all.

One can get into mindless routines, and not really live - that's possible. But what is it like to want to live.

Let us try to answer by observation. Assuming oneself has the answers needed, or so we have HEARD. Let us try and find out why 'I' am  specifically still here and presumably interested. Do I think I will voluntarily end my life today? Not likely. So I either have some interest or have inertia. 

OK, let's probe inertia first.

2. Probing inertia

So assuming I am just under inertia, what does that mean? What am I afraid of -

Things being worse. 

The body is starting to get old. It does not last - youth. And only so much is in my hands. The overall game is given and the universe does not care. The earth - the speck of dust will remain as it is whatever I do here. I can work to make people happy (bring more smiles as they say, which is just fancy words), but what does that mean - more pacified bodies. What does being peaceful mean?

Here - Fear of Failure. 

That's what stops one. That's what favors status quo and boring choices.
Otherwise - 
i. True that nothing may really matter, but that means just go out there and be, light as a feather!!
ii. Yes, it is the adrenaline that makes you work! It is the human state, but nothing pitiful about it.