The real adjustment challenges of arriving in Bangkok — heat, traffic, communication, and sensory overload.
Most visitors experience a combination of wonder and overwhelm — the heat, the noise, the traffic, and the sensory density of Bangkok are intense; this is normal.
Full acclimatisation to Bangkok heat takes 1–2 weeks; in the first days, drink constantly, stay in shade midday, accept that you'll sweat constantly.
English is widely spoken in tourist areas but disappears quickly off the main streets; showing your phone screen (text or Google Maps) is often more effective than speaking.
Bangkok traffic feels dangerous to newcomers — pedestrian crossings are advisory, not enforced; cross with a group or wait for a clear gap; motorbikes come from anywhere.
Most visitors hit a turning point around day 3–4 where Bangkok shifts from overwhelming to extraordinary — the trick is getting past the initial sensory overload.