if you find any grammar mistakes in my practice, please tell me XD

2 defects in the increase of foreign tourists in Japan

The increase of foreign tourists has had 2 defects on Japan. One of them is, increase of foreigners was that the responses are burden to us(I'm not sure what this means).

I mean, it is required in Japan to learn foreign languages. Especially, Chinese, Korean, and English. One of my experience was that when I worked in a large household retailer’s game booth, a Chinese woman visited us and asked me a game console. But I couldn't understand her because I don't know Chinese. Nowadays, the Japanese government concentrates on English education. However I think Chinese education is also necessary as English since the majority of the tourists are Chinese and some of them can’t speak English.. Moreover, there are quite a few Japanese with insufficient proficiency in English. Another defect is the increase in tourism revenue. There is a rumor that it gained recognition attracting many returning customers. Of course, those people have increased. Particularly, Chinese tourists have become increasingly important for the Japanese tourism industry. Others place like Hong Kong, tourism industry accounts to 10% of GDP. However in Japan it is only 0.5%. This number shows us there are room for further improvement(development). In consequence( I'm not sure what you mean by that here), the increase of foreign tourists has had negative and positive effects.