The 6 Most Common Beginner Fitness Mistakes that are killing your muscle gains! Don't do these at any cost - lear from my own mistakes and failures. These free fitness tips will help you get started the right way, even if you are a beginner lifter with no training experience. Check out the article to see the 6 newbie mistakes - highly recommended! #beginnermistakes #fitnesstips #fitnessadvice #lessons #newbiemistakes #fitness