What were five reasons why the watergate scandal cover up made nixon resign?

Watergate started with burglars trying to break into a psychologist's office to get dirt on one of his clients whom Nixon wanted to discredit. At first Nixon denied any knowledge, but money found on them was traced to funds connected to the White House. Ultimately it came out that Nixon had directed their actions, paid them, knew all about it, and tried to conceal this knowledge and use the CIA to block an FBI investigation. This was a combination of felonies: conspiracy, obstructing justice, etc. He faced impeachment, and was sure to be removed from office. By resigning he at least kept his pension.