20 More Pounds

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I honestly just want to lose 20 more lbs but I feel like I'm just not going anywhere. The place I work at is very physical. I lift 50 lb bags pretty much for 12 hours 5 days a week. I try to stay around 1000 calories. I started out at 250 lbs roughly and I'm in the 160s now. My ultimate goal is the 130s but I would be happy in the 140s. Any advice? Any cardio plans anyone knows of that could help? I'm really up for anything at this point...