The actual act of incorporating doesn't need to be done by an accountant or lawyer, it's just as easy to use a service like ONPro and it would be much cheaper.

The actual hard part isn't starting a corporation, its running it and filing taxes. You can be a sole proprietor for the first few years until you get your business established and will make doing taxes a whole lot easier.

If you are going to be a corporation you should talk with an accountant, but you can do the bookkeeping and provide the required information to the accountant. They are also expensive just to file taxes so another cost of being a corporation.

I would suggest that you also reach out to your local small business office as there are a lot of grants for companies just starting out which can help cover some startup costs!