HOW LONG SHOULD I HOLD ON?

I met you, you met me
From the start I don't know if we're meant to be

You smiled, I smiled 
From that very moment our sights collide

My heart skips a beat
I don't want that moment to end even for a bit

We became closer, more closer
I think I'm falling, I ask myself: "Will he catch me?" 
I'm terrified, i don't wanna be a loser

You hold my hand, i hold your hand
I longed for that moment for years
Finally we're walking hand in hand

I want to be the only hand you ever need to hold
I wonder if he thinks the same way too
I don't want to expect, 'coz I don't want my heart to be left in cold

Move on, hold on
Now I'm so confused
I don't know what keeps me holding on

My mind keeps asking: "How long should I hold on?
My heart answered: "As long as my heart is on"