Good advice from others above. It sounds like something is definitely not translating (especially on the draws) from dry to live fire. It could be sight picture confidence. For instance, at home doing dry fire we can “cheat” a little since there is penalty if our sight picture was not perfect when we pulled the trigger. At a match, the result becomes clear right away and there are consequences (misses and lower points). So, are you really a .6-.8 draw with a good sight picture and a solid trigger squeeze? You might be, but the live fire says otherwise. Be realistic with your expectations.
Also, are you reloading empty mags at home during dry fire? This actually makes a difference versus full ones during live fire. DO NOT go using live rounds at home, but maybe load up dummy rounds/snap caps when practicing at home to simulate full weight mags.
I am a .75-.9 draw in dry fire and .75-1.1 in match fire (from 7-10yards). It just takes a lot of live practice as well as dry firing like you would live fire (good sight picture and trigger pull).
Good luck and keep at it! I am sure training with a GM will help a lot!