so im at about 4.5k pp now, but my timing is still the worst thing ive ever seen, but it feels more like timing is based on luck than skill (im not saying it is, just saying thats what it feels like . I try to hit the key as soon as the note is aligned with the arrow symbol at the bottom, and sometimes it leads to a marvelous, but sometimes it leads to a great and I can't tell the difference at all. This is messing me up really bad, especially on stream based songs where I hit 3/4 of the stream with a great instead of a perfect/marvelous. Is there any sort of tip you can give me or am I just plain screwed?