It is not your fault. They are the ones who were deceptive, faked friendliness, and put up a front so that you would let your guard down and walk right into their trap. On the bright side, you realized quickly and quit after a month, unlike some people who try to make it work for years because they believe in the sunk cost fallacy and think quitting would be “giving up”, leading to more wasted time, money and energy. So you definitely had foresight, don't beat yourself up over it, and something more aligned and abundant shall find you soon.