Hi everyone, I am facing a very strange problem. I spend 3-4 hours designing my thumbnails in high quality, but as soon as I upload them to YouTube, my CTR (Click-Through Rate) is very low.

When I check my video on my phone, the thumbnail looks very small and the text is almost impossible to read. Is there any way to see how my thumbnail will look on the actual YouTube homepage or mobile app before I publish the video? I want to compare my design with big creators in my niche.