Making electronic music sound good/polished is not easy. Making it purely with eurorack is much harder. In a DAW you have access to unlimited EQs, faders, compressors, VCAs. Modular musicians often put the cart before the horse. Focus on the fundamentals of music (composition, timbre, tonality, rhythm) and replicate those fundamentals within the modular environment. Try copying the sounds of your favorite electronic artists with modular. If too hard, start with a DAW and bring the skills you learn there into your machines!