The good news is that, with the possible exception of movers, you'll probably never see shots in USPSA that you think are genuinely, intrinsically "hard." The "hard" will always come from the circumstances - the time pressure, trying to do things from an awkward position, trying to take shots in the context of a complicated memory-stage plan, etc.
FWIW, I posted this a few months ago in response to another new shooter. Take it for what it's worth, it may not all be applicable to you:
The good news is that, at that level and level of experience, improvement is likely to come quickly and easily... you surely have a LOT of low-hanging fruit to pick. A few random thoughts, based on nothing in particular except running a club match that sees
lots of new shooters every year and then getting to watch those guys/gals improve (or not improve):
1. If you learn by reading, read one of the good books. I personally like this one a lot:
http://astore.amazon.com/bensto02-20/detail/1533397716
2. You [the poster to whom I was responding] say you lack athletic ability because you drive a desk. Lots of highly-classified shooters are flat-out obese. Being very fit is helpful, but it's not essential. What is essential is that when you move, you move with urgency. Lots of shooters - including guys who run marathons or who were serious high school or even college athletes - tiptoe through stages. To hell with that. If you need to move,
MOVE! Move like you're playing shortstop and a ball has been hit into the hole, or like your toddler is playing in the street and a cement mixer is barreling towards them... you
HAVE to get there, and being .5 seconds late getting there is as bad as not getting there at all. That's the mentality for movement, IMO.
3. Lots of dryfire. Lots of draws and reloads especially. Just like with your feet, get used to moving your hands
fast. Slow is not fast. Fast is fast.
4. Don't worry about breaking the shot faster. Do everything else faster. Get the gun up and ready to fire faster (and before your feet stop moving if you're coming in to a position). Move your eyes between targets faster. Run as fast as you can. Break the shot when the sights are telling you.
5. Get used to firing - or at least aiming - without being completely "settled" into position. Lots of people coming from a square range background really seem to want to "settle" into a shooting position for quite a while before they can really begin the process of shooting. Nuts to that. Be looking at the front sight while you're still "settling," and as soon as it tells you that you're aimed at the A-zone, go for it.
It's possible that some or all of the above doesn't apply to you, but, IME, these things apply to basically all new USPSA shooters, especially slow ones. There are surely many other individual-specific points, but the above are near-universal. Next most common would be completely ineffective recoil control, but that is more individualized to identify and fix... and it's possible you don't have that issue.
Note: I'm a B-class shooter, so I've got no tips on how to get really
good. But I know how to get from
terrible to mediocre!