Last piece of advice. You might be forcing shots. When you sense the alignment is getting out of control or there is more shake than you like, put the gun down. Likewise, if the sight alignment is good when the shot breaks try taking another shot but ONLY if the sight alignment and hold feels good on the subsequent shots. I've had strings where I shoot 3 or even 4 shots in a row because the sight alignment was good and the shots just broke by themselves.
Say to yourself something that gives you confidence. For me: "I came here to win!" or "I came here to shoot tens, not 9's and 8's. Shoot tens!".