[Puzzle] It's not hard, I swear!

All you got from me is:
4OjiOn5s8s8

I give no hints, I only give .gifTS
You've got 1 week!

I lied I do give hints at: two twenty nine two fifty zero.

Giveaway starts in two hours!

Hints:

Sometimes we have to change from being literary to scientists and of course we must respect the proper English.

The very important senses in human been are the vision and the hearing. So listen properly and look properly.

Just keep give it one more try for a lovely lullaby.

Note: I put some tricks, however those tricks won't take you away from your path, they just gonna slow you down a bit.

Another hints:

The Code I provided is a Youtube song called Lullaby for Nickelback, the clue for the next step of the puzzle is in it, to find it you must do what I said in the first hints above. I did this because there was no entries after 1 day of the creation of the giveaway.