I'm glad you have decided to grow something you eat. The next logical step is plan your garden.
Here are 4 S's to consider
1. Sun - The sun rises in the east and sets in the west. Fruits and vegetables, with a few exceptions, require at least 6-8 hours of sunlight and some as much as 8-12. Where you start your garden should be along the path of the sun's transit.
2. Soil - I was taught dirt is what you track into your mothers house after playing outside. Soil is where food grows. Good soil is one where water drains easily and is free of toxic metals. A soil analysis is relatively inexpensive and will inform you of the state of your soil. I'd be glad to help you with completing a soil analysis!
3. Space - If you know what you would like to grow, on the back of your seed packets are spacing requirements. Allow those measurements to guide you in planning your garden.
4. Small - Sounds silly but start small. One lesson I learned early on is a garden could become so big that the amount of effort you have to put in to maintain it is overwhelming. Once that happens you end up with an eyesore in your backyard. Master growing 3-5 plants your first year then expand your garden as you see fit.
Happy Growing!
If there is anyway I can help send me a message.