Pots will need frequent water and feedings. A small garden bed or a large mound would be more forgiving and easier. But that means sticking with conventional organic and synthetic fertilizers and not using the cool hydroponic nutrients.
Easiest way to grow is a raised bed. Build one yourself for only a couple bucks. Fill it with a few different brands of potting soil. Fill at least six inches high. Transplant as soon as possible, but after danger of frost has past. The first year you don't really need fertilizer, unless your growing a lot of plants per bed. One plant per bed @ 3'x 3' or bigger.
Instead of fertilizer, buy mulch to retain water and heat. Even better, look into ways to save water. Drip irrigation on a timer makes things almost idiot proof. Then right after you harvest,immediately plant legumes or clovers or heck just buy a bag of birdseed. Grow that then kill it in spring. This is called growing a winter cover crop. it saves your soil,keeps weeds out, reduces mosaic virus, and puts nitrogen back into the soil.
Before buying fertilizer, buy a soil test kit. Use that to dictate what fertilizer npk ratio to use and how much to apply.