It happens to the best of us.
Some are obvious, some are not. Just learn from your mistake, and hope the best next time right?
But, some legit services are in the service section.
i havnt seen any cloudmining services that were worth it. you have to pay more then the hashrate delivers, in fee's every day.
maybe there are some legit services that will let you mine your investment back in 2 years, but thats no good. after 2 years the difficulty will have gone up and the investment will never return. (well, maybe 90% of it)
ill have another look at the sites you referred to in the service section.