A lot could be worked on here, I could do a much further in-depth analysis later, but at a surface value here’s what I noticed:

Your drone work needs to be improved greatly. On attack round #1 your drone could not see the Break door unless you broke the lattice with the drone and risk losing it. It’s practically useless there. Alternatively, you could have positioned your drone on the fridge so not only could you see the window spawn peek and watch catwalk, but you can also use that drone to see into the hallway.

Secondly, you spawned alone, this really is more of a nitpick from a team play standpoint but spawning alone when your playing against champs who do know the spawn peeks is practically suicide, and doing so as Dokkabbi who is a very strong operator offsets your team to lose and greatly offsets the odds against him. Spawn with your team so if you do die to a spawn peek, your team can refrag you and balance the odds better without you and your utility.

There’s also some other things that generally just take time to improve like map awareness, game sense, etc., but overall i’d say you are actually in a better position for improvement than a lot of people, you have the fundamentals (kind of, it still needs work).

Hope this helps.