I can't speak for the DACA situation, but my advice is start saving early. I've been poor, trying to put myself through school and work while raising a toddler (my ex left when the kid was three). I put 12% of my income (the "max" at the time) into an IRA. The first few years my max was about $2400, but the compound interest on that is amazing! It definitely helped set me up for later in life (39 now).
You won't have everything your single, childless peers have. You won't have everything you had living at home. You won't have everything your married friends with kids have. You will be in your own place, and that may be a little behind for a while. But, if you save diligently, you could well surpass them in a decade or so. Try to be content with what you have, and save for the next step, rather than spending what you don't have yet to keep up with others. Slow and steady really can get you there, but it takes patience and persistence.
There will be bad days. You may not be able to replace a broken refrigerator today. You may have to keep your food in an ice chest for a while until you can save up the extra cash to replace it. You may have to wash laundry in the tub if your washer breaks. These things are ok. It's more work, and it sucks, but it's better to deal with it and save up the money until you can replace an appliance with cash.
If people offer help, take them up on it! Barter for things.
One big one... It's better to be single than with the wrong person. It can be hard and lonely, but it could be so much worse if you pair up with the wrong mate.