Should I play competitive or deathmatch

CSD does not help in training, I used to be helped by one card if I remember the name I'll write

If you want to get better aim and movements you should play deathmatch, but if you want to get a rank and try to get better, u should play competitive.

Deathmatch to warm up for competitive then go full blast into comp. Overwatch I assume?

If you are new to CSGO and need to practice i would recommend deathmatch or even som workshop aim maps. Then when you feel you are ready, go into matchmaking. GLHF.

Play deathmatch to help aim and master weapons, comp if you want to get lots of xp and that

Both becouse you learn something in both gameodes that you need for each other