Is there a way to hide the url or redirect it so they domnt see it when clicking throguh?

I have ranked a youtube video and in hindsight i realzie that it being on a totally unrelated domain may be ruining trust and preventing clicks to my offer.

The initial domain link is hidden by bitly which then goes to a landing page which goes through to the download offer.

Now if I wanted to change the video I imagine that would wreck my seo for it on youtube and id have to start from scratch right?

So how could I hide the landing page url so they dont see it? The domain also shows on the download url but it wouldnt matter then i guess cos they would have already filed out the cpa offer :P