I take a shower. I've never had a major block that kept me from writing. Standing under Niagara Falls would help, I guess. The best thing about being an author is escaping reality and living inside whatever story I happen to be writing. The worst thing about writing is not being able to easily get out of my story and back into the real world to deal with real-life situations.
Reviews are entirely one person's opinion.
Nevertheless, if they're bad, I growl and if they're good, I'm elated. I believe respected reviewers in a reliable publication influence how a book is accepted, to a large extent. I read reviews of books I've never read to discover what I can about what constitutes contemporary literary strengths and weaknesses. I think it would be either William Shakespeare or Edward de Vere, 17th Earl of Oxford, who may or may not have written the works commonly attributed to Shakespeare. I have a lot of questions.