Archery Shooting getting worse

[mathews z7]

Good morning could use some tips over the last couple years my shooting has become worse here is what is going on I shoot a 70 LB 2018 Mathews ,
Flinch and sometimes miss the whole target , brutal
Two quick to pull the trigger
Always shooting low can’t keep it on the target . I have shot for 20 years and maybe I need to change some things , so frustrated , maybe one step is lowering my poundage ? Help please. It’s not the Bow , I have several . It’s the shooter


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