Your time here can be extremely rewarding, in every sense of the word.
BUT
1. check the the topic headings and threads related to employment, work hours, etc. If you don't get a secure position with an MNC, you've put yourself at the mercy of the gods. Local companies have a very bad reputation both among everyday expats and an increasing number of high-profile executives, who often quit after less than a year. Go over your contract with a fine toothed comb and know the risks.
2. as far as being single, age 29, etc. this is no hardship posting, you get by in English easy enough and other countries are very nearby, even if you needed a weekend get away. Just take care of #1.