I'm jealous that you've spent 100 days/365 traveling!

Unfortunately, I can't think of much advice for you, other than avoiding alcohol. Do you usually do dangerous things (other than the binge drinking) while hypo? If not, I wouldn't worry too much. Just enjoy it! If you are at risk for unprotected sex with strangers,overspending, etc., perhaps sheer awareness of that will help you to avoid these things. Be vigilant in tracking your mood, and occasionally stop yourself and ask if what you are currently doing is influenced by a potential hypomania, and if it is risky.