Skarlet, Jade and Kitana give Noob problems. Against Skarlet I would advise that you'll need to out neutral her and make her wife her normals. It's hard because she controls the midrange game super well. 2,1,2 is punishable on block. B3, 4 has a nice gap to FB or poke out of. You can teleslam her projectiles, but the timing is tight. You'll be able to land one easily if you know it's coming which requires a lot of skill points in ones yomi skill tree.
Jade I do not have a lot of experience fighting, nor do I have any experience fighting Kitana.
Scorpion I personally see as a 5-5. It's not bad of a matchup at all. It just requires patience. We can punish teleport and ex teleport with standing 1. When they teleport and you block there is a brief moment where the amplified animation can come out. If you don't see the amplified animation startup for this move you can punish it with a standing 1 into 36%-40% depending on your execution. Again, it's a brief window, so it requires a lot of paying attention to moves and their animations. Scorpion's chain swing into kick can be punished by f2,21,2. Lastly, some of his mixups options are also unsafe. He is a good character, but scorpion's still have to commit.
Sub-Zero can be a pain since he can punish our b1, 1+3 on block with a full combo at the right distance or just punish with slide; however, it's not as bad as ot might seem. Sub doesn't net too much damage and only has mixups if he has meter, so this is another matchup that requires patience.