Misconception #1:
Yes, you can check. That's surely someone you typped a bad address. What's the txID ?
No, it is almost impossible to "type a bad address" because every Bitcoin address has a built is checksum that prevents that. If you take a valid Bitcoin address and change one letter the address in no longer a valid address and will not be accepted by the wallet or the network.
Misconception #2:
Its nicw to receive like that because you are a newbie to bitcoin its lucky but i think in your bitcoin address is the problem.i think your bitcoin address is used of others after you get it and delete of the user that wallet. But thats only a conclusion why you need to know where this come from? No need because its not a bad thing uts a good thing free money is almost people want so dont find who sent it .
Absolutely not. Once a Bitcoin address is used and deleted it will
never be used again, ever.
And just in case you are thinking it: No, two people will never get the same Bitcoin addresses "by mistake". So your funds will never get mixed with someone else's coins.