User blog:Histoy-IAN/Video Quality slightly off - Help?

Im noticing that the quality of my videos (visually) is being affected when i upload them to Youtube. The video files on my PC look at thier best while the videos on Youtube look bad compared to them.

Is there a way to upload better quality videos?

It the quality of my videos good when you watch them yourself?

Heres a video example: https://www.youtube.com/watch?v=xPFj8lMFFos

I hope that i get an answer soon. Thank you.