Maybe. You have been in Canada without status since September 30th. Were you working during this time? It will be a the discretion of CBSA if you are allowed to enter given you were in Canada so long without status. You will only find out once you try and enter Canada.Yes.
If I can leave Canada and re-enter Canada by my visitor visa?
As per guidelines, If a foreign national leaves Canada, they will be deemed to be seeking a new entry on their return, and the previous non-compliance with imposed conditions may make them inadmissible to Canada as per section A41 and subsection A29(2).