Useful Links

The older you get, the more important structured study becomes, so if your teen days are over, you'd better start working on some grammatical scaffolding to put all that new vocabulary on. In other words, build a frame of simple but basic grammar, and then attach new vocabulary to it as you go along.

Just as translating phrases from Japanese isn't a very good way to get it right in English, maybe you shouldn't always try to find the Japanese equivalents of English grammatical structures, but just take them in, as they are.

How about checking out some grammar websites in English, before the holiday is over? Read the compact explanations, and try your hand at the exercises, too. It should be OK, no need to go looking for your old high-school textbooks!

http://www.edufind.com/english/grammar/grammar_topics.php

http://www.ego4u.com/en/cram-up/grammar

http://www.englishclub.com/grammar/

These are just some suggestions. If you know any other useful sites, please share!