I've had 20 novels published by a mainstream publisher (It's been the day job for nearly 30 years now). My advice would be to join a writing group (in real life, not just an online one) if you have one nearby and to read MsLexia and Writing Magazine and to get some practice in by doing their competitions. It really hones the craft to have to write to a word-count and to do something smaller than an entire novel.
Another one I rather like and which I have contributed to is something called Paragraph Planet (Paragraphplanet.com) who publish a tiny 75 word piece every day. If you're stuck on your main work it's good fun to have something tiny to work on and have out there for all to see!
On a more major investment level, I also recommend doing a course at a retreat. Try Chez Castillon (google that one, I don't have the exact web address to hand) in SW France where the hosts are wonderful, you'll get expert advice and guidance and have a brilliant time as well.
And maccyt1995 I think BradfordLass72 was absolutely right - some people do go to courses already convinced their work is at genius level but many more go there for help and to boost confidence. I don't think she was mocking anyone, simply stating her experience.
Have any of you got all electric cars? Pros and cons please.