Hi Amber, welcome to Permies. Salads don't require a lot of great soil or skill. Select a four season one if you can afford the seeds. If you let a few go to seed, you'll have a hundred times the amount of seeds you started with for next year. If you get those to go you won't have to buy salads from the store any more, that's saving money and getting healthy.
There are seed exchanges you can go to and people normally will give you some. Or more than you like. Try it and save the seeds yourselves, return in a year , you'll have barter.
Nature itself is providing a lot of seeds. If you see a flower, on way to school/work/shopping parking lot take a picture, put it on a forum, or see online if you can identify it. It will make you remember the flower and pick it when the seeds are ripe, bring it home put it in the garden.
There are lots of
trees you can take cuttings from in autumn, like willows and elderberries. You can plant those at the creek.
Speak to people about it, plant people like to give, cause we've got too much plants.
Cardboard will kill grass and plants you don't want, dump rocks on it so it won't blow away. It will keep the soil moist under it, worms will come under and live and breed while transforming the rotting carton, they eat it because they like the bacteria in it, their
poop will
feed the soil, there work will loosen up the soil.
You can dump your food left overs on a big pile at a spot where worms like to live, make a small wall around it out of sight in a shady bit, close enough to the house, make your own compost. Keep piling and adding, till it around at times, put carton on top if it's too sunny on it it will keep it moist and worms happy.
You can take some small plants with
roots and all from forests, better wait till autumn for small trees you want to grow, collect acorns and all sorts of seeds. You'll need a garden trowel and a shovel, get ones that have long thin blades, they're easier to use.
Get beans started, they have something on the roots called nodules, bacteria live in them that make nitrogen which they give to the plant in exchange for sugar the plant makes in it's leaves. It will make the soil richer in these kind of bacteria. Clovers of all sorts do the same, recognize clovers and bring those seeds to your place and disperse them.
Invite plants, they will flower and invite insects, insects will eat flowers and invite birds, birds will drop seeds and droppings will fertilize your soil. Plants fertilize your soil given the chance.
Digging a
pond fed by rainwater will do so much as well, but that's a big job and costs some money, but a total game changer.
It all takes time, just give it what you got. Nature is free entertainment forever. Enjoy and learn, ideas will come. Write and read on Permies, the good and the bad, people will help.