Literally scored 0 in dilr and qa in my first mock what should i do its looks like i have did nothing

Congratulations, you're a part of the majority of the crowd who have never attempted an aptitude exam in the style of the CAT. Perfectly normal, start working from the basics. Understand the types of questions coming in DILR and QA, do LOD (Level of Difficulty) 1 questions, have a firm grip over them, regardless of the time it takes, remember, the competition is with yourself from yesterday. Understand that you may not be able to do a 4-set Venn diagram at the start, but just like playing guitar, you go from playing chords to playing solos, with practice. All the best for your journey dude!