I am having trouble doing sit ups. I am crossing my arms across my chest and its hard for me to raise up to my knees. I am wondering what I could do. I have about 20 days to get into shape for a physical agility test and I can do everything but the sit ups. I can barely get my shoulder off the ground. The only way I could do them is put my feet under the couch and then its really hard. Anyone have any suggestions let me know.
Thanks
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