Where and how do I report consulting income to pay the income tax and calculate & pay the CPP premiums? I do not have my own company (i.e. no GST #).

Here is how to enter other employment income: https://turbotax.community.intuit.ca/replies/2647715

If you have expenses that you incurred to make this income, you may be better off considering yourself “Self-Employed”, as that will allow you to claim the expenses against your taxes owing on the income.

FYI: You don’t need to have a GST number to have a “business”. Here’s a CRA link that explains what they consider a business: https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/sole-proprietorships-partners...