Of course MLM doesn't work, if you are using the tired old tactics that never worked to begin with. People have had all sorts of bad experiences in the past.
The worst part is, negative word of mouth spreads way better than positive. Even if your prospect has never been involved with network marketing before, they have surely heard horror stories.
I am planning a multi part series covering several of the objections you will hear. Look for this series in the next week or two. For now, be aware that you will have objections to overcome.
You will need to know what it is about your system/business that makes it different from what they have tried or heard of. If you find that your system is pretty much like what they are complaining about, maybe it is time to look elsewhere.
There are great companies and phenomenal training systems available. Check out our Mentoring Resources page for some options in this area.