I currently have 17 dwarves, 32 food, no meat or fish and 10 drinks.
I'd say you need about 85 food and 10 barrels of booze. That's for that number of dwarves. Have you had just two migrant waves so far? Those are pretty small. Unless you've lowered the population cap, you should be prepared for the next wave to double your working population and add a bunch of children for good measure.
The good news is that since you're following a quickstart guide, you've probably picked a pretty gentle site. You can make barrels from wood or pots from stone (pots have a higher storage capacity than barrels, but keep some barrels spare for workshops and syrup-making), and you can gather surface plants and pre-emptively set the edible ones to not be brewed. Make several small (ie. 2x2) plots wherever it's currently the most convenient, and get some seeds in the ground. The reason these plots are so small is so you can abandon them in a hurry and not lose too much. Most crops can be eaten raw or brewed, or both, but there are some exceptions. Dimple cup, blade weed, and hide root are dye crops. Valley herb needs to be cooked. Quarry bushes need to be processed to bag and then cooked, but you get 5 units of leaves per harvested plant. Some of the brewable crops can be turned into food with more processing, but ignore that for now. The food produced always needs a container, always needs to be cooked, and is either liquid or in a stack the same size as the plant stack that went into it. When brewing, you get 5 units of booze in the stack for every 1 plant in the stack.
So, in summary of the above, eat raw what you can and brew what you can't, and ignore everything else until you have enough food and drink for at least two seasons.
Have you slaughtered your wagon-pulling animals? Those are instant food, and while dwarves can eat raw tissue it's much nicer to turn it into prepared meals. This also allows you to use the fat from the animal, which needs to be rendered into tallow and cooked before it becomes edible.