I was trapped in the 60s by the system

Su Man never believed in the fairy tale of good deeds being rewarded until her untimely death, after which she was bound by a saintly system and transmigrated to the famine-stricken era of the 1960s, becoming a nearly starving peasant boy. Driven by a strong will to survive, Su Man can only continue living by tirelessly completing saintly missions... "Ding, helped an elderly lady who fell down once, rewarded with 5 saintly points, suggested exchange for 1 grain coupon, worth 20 cents RMB..." "Ding, rescued a drowning child, rewarded. 1000 saintly points, suggested exchange for 400 kilograms of grain, 20 kilograms of pork..." "Ding..." Link for raw: https://www.jjwxc.net/onebook.php?novelid=4111009