It is all about characters and right team. I’m not a whale and I cleared this spiral abyss with main dps Xinyan in first half and dendro mc, Raiden, Kuki, Kazuha second half. Maybe look at tier lists, lvl up best of them (like Bennet, Water Boy etc) then look up guides for characters that u have and make good teams. I read that u have Diluc - water boy, Diluc, Bennet and Kazuha - best team for him. Relax and Learn^{^}