I only watched the first match, and I see that you're not really spacing well.. I see that you're always at close contact with him, and he's usually hitting you then you hit him. You need to shield more and wave dash more and wding out of shield more too. You need to also work on your edgeguard, there were many times he was off stage and you could've killed him. Your grab game is okay I guess, but can be better. I personally crouch cancel a lot then tilt > grab/fair/nair or something. You should watch more videos of Amsah or M2K and see how they approach and space. When people are playing Sheik, the opponent needs to have that feeling of being scared, so they can't just approach you easily.. Well that's just my 2 cents.
