Hi, Nichola. I'm a huge fan of Chinese dramas, too. I can relate to you. There's a lot of sites to mention. Here are my favorite ones.
W/ Eng subs: viki, dramafever, kissasian, drama.net, gooddrama, dramacool, dramanice, youtube, sugoideas, etc..
No Eng subs/top Chinese video sites: youku, tudou, iqiyi, pptv, bilibili, 56.com, qq.com, sohu, acfun, etc..
My own way of searching for episodes, whether it's w/ English subtitles or none at all, is by copying either of the ff. : the pinyin or Chinese characters of the title of a drama (native title), ex. 一起来看流星雨, or the alternative title (also known as), ex. Yi Qi Lai Kan Liu Xing Yu. Then, I paste it on any search engine, like Google, Yahoo, Bing, or Baidu.com . Hope this works! :)