I can't help noticing that you are into everything and nothing. Affirmations do work whether you know it or not affirmations are part of your belief system.

If you want to make headway in the self improvement area of your life I suggest you pick one thing and only one thing and get started on that. Once you've get going on that it becomes easier to get started on the other self improvment projects.

Paraliminals - each one has a general purpose that can help you in chosen areas of your life. They help you towards your goals once you have defined them. In many cases one listening will get you moving toward your goal. (Use for each goal and each aspect of a goal). You'll find that even if you have only one paraliminal a bit of creative thinking about your goal and the paraliminal can be adapted. Personal Genius can just as easily be used for weight loss, relationship and prosperity... as can the prosperity tape be used for Genius, relationships etc. It only depends on your stated goal prior to listening.

Subliminal - such as the inner talk tape can also help you in specific areas of your life. Unlike the paraliminals they probably require more listening to see results. (use daily for a month for long term changes)

Sedona Method - Getting control of your emotions - is a techniques for getting out of your own way and getting out of others way and empowering yourself by letting go of limitations you place upon yourself through your expectation. (once learnt becomes a part of your life. Empowering in that things stop bugging you as much as they used to.)

Holosync - mediation technique that causes you to make adjustments in your life through overwhelm and being to the surface the redundancies in your life (use daily for life)

Silva Method - also known as Dynamic mediation self enhancing does much of what tape courses - on a 'do it yourself basis'. Can be used to enhance any area of your life... particularly useful for handling working life and enhancing intuition.

NLP - better taught by a trained professional once learnt allows you to adopt patterns that empower the self and can motivate you into action.

Affirmations - need to be believable, achievable stated in the present tense and stated in the direction you want to go. Often fail because people make the mistake of creating their affirmations in the negative sense. E.g. I will lose x amount of weight by y date. (to lose something implies that you want it back now one ever likes to lose anything.) I won't fail the test. Affirmations work best when they are brought into play with any or all of the other above mentioned methods.

Again I suggest you pick an area in your life, pick a technique and get started on it. The more time you spend looking for the perfect technique the longer it will take for you to achieve your goals.

Off hand the paraliminal Get Around To It is a great start - it will motivate you towards any goal and help you start taking the appropriate action to get going. Also helpful when you find yourself procastinating.

If you are uncertain about courses offered check out the companies return policy. With so many options available it pays to try on for size. Check e-bay for the product you are looking for. The number of people reselling the product would give an indication of how useful they find the product. (No one is in a hurry to get rid of something that worked for them) If you want the benefit of the refund guarantee... buy from the supplier (in the case of courses you will be assured you get the entire course, support when it's offered and the ability to return the course if it failed to meet up to your expectations)

Good luck
Alex