Solving random problems from codeforces problem set makes me feel that i am just doing stuffs without any goal. It contains many questions so you cant have a goal to complete the whole set. So i was wasting a lot of my time looking for codeforces blogs that tells about a good problem set. But these sets are either old or dont have enough questions. i would like to know your opinion on these sets and suggest me the best set you think is available right now.

The sets i found were: 1) A2oj ladders 2) CSES Problem Set — https://cses.fi/problemset 3) Mostafa Saad Sheet — https://goo.gl/unDETI 4) Kartik's Specialist Sheet — https://docs.google.com/document/d/1CcayDX2Gg4r2sxFhrZCPPcIwNzhKXfYa1wSuvr3OMzU/edit 5) kenkooo training bootcamp sheets — https://kenkoooo.com/atcoder#/training

please tell if you follow any different sheet. and why do you like it?