like when it comes to making basslines you should focus on the first third and fifth scale degrees. Yours were basically everywhere so they didn't really fit with the main synth melody. I would say practice/learn scales and learning basic theory will really help. Keep grinding and Good luck man.
word. all western music, classical to nowadays pop, is all about scales. as somar so eloquently put it, fucks with the root first. which is the first scale degree. next important, the fifth or tonic, etc. i know if you didn't study music, but the theory behind scales is actually really mathematical. there is nothing really musical about learning it at all. let me know!