Packing is a bit of a challenge. Six months, many different climate zones and just one backpack. Wise packing is a must.
There are millions of backpacking guides on the web. And with them come endless packing lists for all kinds of needs. For hiking, climbing, Europe in winter, south east Asia in summer, ladies packing, small backpack packing and so on. All of them have one message in common: pack less of what you think you might need.