These are not bad options, but they all take a lot of our time. All these options are gambling, and even with the use of our abilities, it will take weeks before we begin to receive any income from this. Moreover, we still need start-up capital. Considering our family's situation, five dollars is a lot of money. What we are discussing now is the ability to get a certain amount quickly, preferably without getting into trouble.
Other ideas:
Sell game keys - There was a Jimquesition episode once about a website that let people buy and sell keys for games on steam and other platforms, and it was full of hackers and shady people selling stolen or hacked keys.
If we're okay with doing shady stuff, we could use clairaudience or another power to acquire some of the codes/keys for games, sell them, and then use the money to buy food and stuff. It's a victimless crime if you don't count the developers who get shafted from lost sales and money they have to pay if the customer wants a refund (since the refund comes from the developer and not the person who sold the key).
Food bank or soup kitchen - If our main goal is to get food and not necessarily money to buy food, we can try going to a soup kitchen or help our parents apply for benefits like food stamps or whatnot.
Coupon clipping - Not sure how easy this would be with clairvoyance or multitasking, but if we can predict/locate special coupons or deals we might be able to help our parents with shopping and buy more food with what money we have.
Mine bitcoin? - Not sure if this would work, but bitcoins are mined using computational power and once somebody mines it then they can trade it.
A quick Google tells me that 1 bitcoin is currently valued at over 51,000 dollars for some reason, though I know bitcoins are usually split up into smaller units.
So, if we can use our psychic power to mine a bitcoin, we effectively legally own it with theft involved and 50 thousand dollars (or a fraction of that depending on how it works or how we decide it) can go a long way.
Whatever the case, it's going to be good for bitcoin.