My aim is not that bad when I'm playing deathmatch or range. I could tap heads especially when I don't doubt myself that my shot would hit but whenever anxiety kicks in and doubt myself, I'll miss even the easiest shots (happens a lot). When I'm playing competitive or even unrated, I would always miss and can't aim properly because I always doubt myself like "what if I miss this shot and die" or "what if they one tap me when I show up" and what happens is I would panic and I can't aim at them properly and end up hitting the air or spray wildly. How do you stay calm and collected and still have confidence while in a duel?