hello tubys i am new here and i recently launched a amazon product's channel, its hard to me to rank my videos.
Are you an Amazon Affiliate? Just FYI. You can post your links in the description of the video. I can guide on this process if you need help understanding how to do it.
I am sorry to say that product review channels on YouTube are not what they once were. Three or four years ago, they were very successful, but today, not so much. It is nearly impossible to rank in the YT algo on them because they don't follow the Holy Grail (puke) of genre-based content. YT's algo is stupid when it comes to this.

YouTube wants you to create a channel entirely based on one subject. So if your channel is about "Stupid girls tripping and falling down" (Just an example), that is the only kind of video they want you to post. YouTube wants, no they DEMAND, that you cram yourself into a nice little box so they can categorize you as this or that. It is the most disgusting thing I hate about YouTube, but it is the way it is. Amazon product channels post about a wide array of products. This confuses YouTube's stupid algorithm and it does not know how to categorize your channel because it does not fit into one of its little boxes.
It will be slow, but you can do it. Monetize through Affiliate Links though, because you will never make any money on YouTube from ads.