when i began in bitcoin, at first i was joining campaigns and bounties, my earnings there really helped my finances, it became my part time job, at first, i am not earning that much because of my rank, but because of patience and hardwork, slowly i ranked up and added more earnings, joining bitcoin does not require much capital to start with, since bitcoin is still a risky investment, putting huge amount of capital requires more cautious measures, i dont know how fast your friend can recover with the help of bitcoin, but i think it will ease a bit up for him, do not put all his money left to crypto, as the risk is higher, in trading bitcoin, it is still best to invest money that you can afford to loose and not the money that was left in your wallet to put it all in crypto investment.