Good for motivation, though. There's an entire school of self-motivation that revolves around giving yourself XP and points for doing things, complete with leveling up. The theory is if you treat life as a game with these little incremental goals to achieve, you will be more inclined to keep busy and be productive.
This is the LifeRPG Template that I have been working on... I've tried mixing together everything that I could from Skyrim, gaming, old-school RPG and platform games, and realistically reflect a take on modern life.
I will speak from personal experience here. I moved 6000 miles to the Middle East and put my gaming pc in storage, and haven't look back since.
I worked out two hours a day, six days a week, for three months before I left. I additionally focused on language learning quite intensely. I found that I was able to equate the small goal-setting patterns of RPGs and feelings of achievement through the gym, and I believe you will find such a feeling as well. LifeRPG and Nerd Fitness are excellent resources for you, and I highly encourage you to look these up. They will keep you motivated and passionate about your journey, because starting an adventure really is what quitting gaming is about. An additional way to stay occupied is to pick up board games that use a lot of strategy, like Carcasonne or Risk. I started playing guitar to help me focus.
A last word of advice is that this is the start of a journey that has nothing but benefits. Each goal you achieve and hour of energy you put in absolutely will net a reward. China will change you as a person and you will find seeing the rest of the world will occupy your time and perspective even when you return.
I say this as a man who left a beautiful rig and hundreds of hours of playtime and found my religion, my girlfriend, my professional passion, and new hobbies as a 21-year-old. I hope you find the same happiness in your pursuits as well.