I drink coffee everyday, coffee is 2% nitrogen, so I save the grounds and toss them into the compost along with the spent grains from brewing, leaves, garden weeds, grass clippings, apple leftovers from cider, kitchen waste (except meat items). I usually have a two piles going, a "newer" pile and and "older" pile. The older pile gets mixed into the garden soil when its ready or when I get around to it and then I start the next new pile and repeat the process. Each pile is about 4x4. Doing this will gradually build up your soil with nutrients and worms. I've never checked my soil PH , but think its a good idea.
Most soil will benefit from a lime addition. The pelletized lime is less messy and easier to apply. Lime is not fertilizer, but will help the plants utilize the fertilizer and nutrients in the garden. Miracle grow is a little pricey but works good, you mix it with water and apply with the watering can. When I dig up the garden in the spring, I wait a week or so after the initial tilling, then go back and do it again, removing as much weed material as I can. I use fabric weed block around individual plants to retain moisture and keep the weeds down, but can't really do that with row crops like lettuce or green beans.
Gardening can be as simple or as complicated as you want to make it.
