Hey there Kamano,
Thank you for sharing your experience with us.
I know exactly how you feel: like everything seems to be against you and the game itself is hard. I have been in similar situations all my life when playing video games, especially MOBAs as they are not my main genre. I would say that practice makes perfect and you will just have to play to get the hang of it.
My advice is to start in lower-populated areas of the map and focus on searching for weapons with higher rarity, as well as play with only 1 class and learn to be proficient with it. Take your time, adapt, and learn, because as everything, Bloodhunt also has a learning curve.