I Struggle With Life

I struggle with what are to me vague instructions, I need to know everything that is required, I need to know where to start and stop, today I was asked to sweep up out the front at work, obviously I know I don't need to sweep the grass, but where do I start and stop, did she mean the whole driveway and outside the annex? Or just the bit directly outside the house? And what is defined as directly? I try to avoid doing tasks because I don't know how much to do or when to stop, sometimes I can't stop, wiping down the sides at home can end up with the cooker being stripped and cleaned (yes I will undo screws and literally strip things to clean them, including my car) the cupboards being emptied and cleaned, this cam on occasion lead onto even more stuff around the house. I hate being given tasks, not because I'm lazy,but because I don't know what's expected, and often people can't give me enough detail to feel comfortable about it, it's like giving someone a box of assorted marbles, and asking them to sort them, but not telling them if you want them sorted by size, or colour, or any other distinctive feature.