There are many on-line sources of help and advice for writers. The ones listed below are a very small selection of what is available.
General help with plotting and all aspects of writing.
http://www.thecreativepenn.com (Voted one of the top writing blogs for 3 years running)
Writing Short Stories for Women’s magazines
If you like competitions: http://www.dystopianstories.com/writing-competitions-2016/
Lots of interesting interviews, talks on a literary theme on this video page: