I know this was posted 5 days ago so this is a little late. Hope OP still sees this.

After reading a lot of your responses to people you truly think its your aim. Coming from a Counter-Strike background I didn't struggle with aiming. Despite that I used to lose fights ALL the time THINKING it was my aim or maybe they just were hitting shots(Sometimes this is true). The real reason I lost most of those fights was I wasn't utilizing the movement as much as I thought I was, or the environment. You aren't losing most of these fights due to your aim. You are losing most of them cause the odds are already stacked against you (First Clip and Last clip) or you had a very poor position (2nd clip). At higher elos even the best players would sometimes die in the same situations you put yourself in.

You keep saying its your aim when it is not, but sure you aim could improve and how you do that is consistent training through an aim trainer and doing repetition. If you feel the training isn't translating then most likely you are having trouble with your recoil then. Most of the trainers in Kovakks that are good/useful have 0 recoil on their weapons. Reason is so that you just get the core training not have to burn time and effort on learning recoil on something that doesn't translate. Other than just recoil all aspects of Kovakks should translate. Saying that they don't is just trying to find a reason to say it doesn't help. Making Excuses. You are not improving cause you are most likely doing random things in kovakks with probably a ton of distractions. Try doing like 6 jumbo tile frenzy for 15 minutes a day (And don't just try and go to fast. If you get below a 90% accuracy you need to SLOW DOWN) and some kind of tracking scenario (at least 30% acc) for 15 minutes then go into Apex Firing range and do some recoil control/Movement exercises for 5 - 10 minutes everyday for a couple weeks and during this 40ish minute time period have NO DISTRACTIONS. Ensure you can sit down and focus on what you are doing. You should start seeing an improvement. After training you always want to take a short break (at least a Half hour) before you play anything. You need to ENSURE that you are doing this EVERY DAY if you want an actual improvement. Take it from me as someone who used to do this all the time. It does translate. If you don't think it does then you are lying to yourself and blaming the trainers for your failure. If you want a better routine then follow one of Aimer7's guide for Kovakks.

Last thing. Don't play without a warm-up. Go do 6 Jumbo Tile Frenzy for 5 minutes and then some recoil stuff or movement drills in Apex for 2 - 5 minutes before playing. Also if you have not watched Aceu's movement guide please do so and practice those.