One can use specific Paraliminals for the areas where fear and doubts come in. Where you doubt, grab the Paraliminal for that.
Self-Esteem Supercharger is always a good choice in such a situation if you don't know which Paraliminal to choose.
Self hypnosis is talking to yourself after taking time to relax yourself. Usually requires frequent attempts with mixed results.
Guided hypnosis is when someone or an audio guides you into a relaxed state and often uses affirmations.
Paraliminals are not self hypnosis and no affirmations. If you want to know more about Paraliminals I recommend reading the articles link at the top of the
http://www.learningstrategies.com/Paraliminal/Home.asp page.
Alex