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It happens OP. Just get back to it. do something else. Or do the same thing since you can do it faster and better now that you have it planned out. If you are super duper discouraged take a break, start a run on a different gen, and then jump back to your run on Red.
It is not as bad as my Black 2 run, I got in 60 hours at the 7th Gym badge (taking my comfy ass time exploring and raising mons.) I then hit the number keys accidentally and loaded an emulator save from back in the first gym (a little over 1 hour in.) I totally went to go play a different gen after that. I will revisit Black 2 some time later :(