Thank you so much. Will I be able to come in and out of Canada once it’s submitted within canada?
No, that's not guaranteed at all. Whether you are allowed into Canada or not will be assessed by CBSA each time you re-enter. The H&C application does not authorize re-entry.
If you are not continuously living in Canada after you submit the H&C application, this will very significantly weaken your H&C application. If you plan to submit the application and then leave or plan to travel in and out of Canada, that essentially supports that there's no real H&C case.