Patience: One of the key components of making a trip relaxing, and rewarding, as you will realise with time, is patience. As the saying goes, you will learn to travel without "sweating the stuff you cannot control".
When you travel, you get to meet all manner of people, emotions will run high, there will be drama, and things will go wrong - simply, you should anticipate all manner of challenges. Practise patience in these circumstances to avoid making things worse.