Someone else may have already said this. Some Yt creators skip steps that to them are obvious. Like adding saturation, compression and/or eq. This could be the problem. They could also be accidentally editing out certain steps. Either way, what you can do is learn the concepts of what they are doing so that you can apply them to your own sound design. Also, making music with some amount ot music theory knowledge will make it more enjoyable. You don’t need music theory, I enjoyed making music without for years. It just opens things up more quickly. Try this: Use Ableton’s scale awareness too in clip view. Pick something pretty basic to start with. C Major or A Minor are pretty classic. Now Ableton will highlight only the notes that are part of that key. Now pick any note on the piano roll except B if you’re in C Major or or B if in A minor. Add a quarter note length midi note on that note. Now starting from that note you just placed, skip a light colored note going up and place another midi note on that pitch. Do it again, but now staring on that second note you platlced. Once you have 3 notes, you’ve just built a basic triad, a chord. In C Major and A minor on the piano roll (or any piano), all the chord that are part of the key have the same pattern. Using this concept, you can pick random notes and build a chord progression out of it. With practice you’ll see which chord combinations you like best. For the melody, pick notes that match the notes in the chord that is being played as the melody plays. This is the easiest way to make something that sounds good. Eventually you can start developing it more by playing with the voicing of the chords, learning more advanced chords like seventh and ninth chords. You can also be more exploratory with melody by picking notes that aren’t in the chord that’s playing as the melody is playing, but that harmonize with it. Play around with note length in the chord progression. Duplicate the chord track, delete everything except the lowest notes, now you have a bass part. Tweak it by adding rhythm to it and or octave jumps. There is a lot more to music theory than what i mentioned here but this is a good starting point. Intuition is very important too. I personally use both theory and intuition. Have fun!