Doing taxes for me and 2 non dependent children what is the best product to use. do i need to use accountant

The most economical product for you to use to do 3 separate tax returns is the CD/download product that you install on your computer. You can do an unlimited number of returns for one purchase and you can efile up to 5 federal returns. 

You can buy it on TurboTax at this site: https://turbotax.intuit.com/personal-taxes/cd-download/

Checking the boxes at the top of the screen at this link will help you decide which version to buy. Buy the one the will do the most complex tax return that you are doing. If you need a higher version after you start, you can always upgrade.

You can often find the same products at discount stores or Amazon for lower prices. If you don't buy directly from TurboTax, make sure you buy from a reputable store.