The best way of staying motivated is to make sure you learn things you're really interested in.
Think about what you like doing in your native language, or perhaps things that aren't related to learning languages at all. Then see if you can convert these to Chinese or use them indirectly in your language learning. This article will discuss a few hobbies and how they can be used as learning opportunities.
Sports – You can use sports directly in your language learning by practising them in the target language. This is a great opportunity to not only learn the language, but also to make friends. You probably need to be in China to do this, though, but don't despair if you don't, you can still use sports indirectly, such as through broadcast matches, reading sports-related news in Chinese or chatting about sports with other fans.
Music – Sports require you to be in China to perform in Chinese, but you can sing anywhere if you want to. That doesn't actually require you to go to China, you could find a local group of Chinese exchange students and see if you can join them.
Games – Playing games of different kinds in Chinese is a great way of practising. There are several traditional board games that are either of Chinese origin or are very popular in China, such as Weiqi (Go), Xiangqi (Chinese chess) and Majiang (Mahjong). You can also play computer games in Chinese. Regardless of which kind of game you play, there will be thresholds you need to get past before it gets fun. In other words, you'll have to learn the specific vocabulary involved, but once you've done that, it's a very enjoyable way of learning.
Translated from: about education