Advice Please!

[littlefish]

I need your advice on this one:

I had a DC since he was one year old, now he's three years old, parents are fine with payment punctual, intentionally by accidents he is not careful where he is going so clean up after playing so I constantly dealing with him lt has being so challenging with him I don't want to terminate because I don't want to feel bad that I gave up on him but he is making me so stress out because he needs one on one, parents describes him like a smart, normal child but he is special need and I can't mention to them. Parents take vacations and grandparents take charge so his routine changes and he comes to daycare to throw tamtrums at me I don't know what to do anymore I have the rest of the children but I feel that I only focus on him. What do you think? please help! If I say to him please clean up he responds should listen more and be more calm, he is in daycare and we follow rules, maybe that is affecting him. I don't know how to help him!