I agree with everyone above me.
You were sober for an entire five months, that's not easy. Remember why you decided to become sober in the first place, and physically write it down. As you continue your journey, write it down twice a day; morning and night. This will ensure that you keep your mind on your goal so that you don't relapse again. In the end, it takes a strong willpower and the desire to succeed. I wish you the best of luck.