grind strikes with a rep booster while popping three of coins. run challenge of elders. do tier three court of oryx. run the raid. feed your faction planetary materials after buying them from the vanguard. always be mindful of your lowest light equipment, and decrypt / farm for that first. always have your highest light gear on when getting rewards or decrypting, and always do it one at a time, decrypt, infuse, decrypt, infuse.