well personally i play dice games alot so this is the way I would do it.

I play on a site called Bitsler with a max amount of 15 faucet uses at lvl 1 for 1250 per faucet

get 50k satoshi ( about 33 cents atm)

Hit lvl 2:This will allow you to get 1250 sat with 20 faucet uses

make a seperate account as a bank to store winnings

play at 10% chance

transfer 50k+winnings every time

normally i make like at least like 25k a day off this though normally i just mess around with martingale

In the end, however, I still think that the only way to make 0.3 btc in a week is to put money in

As my Uncle always told me: You've gotta spend money to make money