My impressions are that both mediums were telling you the truth as they saw it to be at the time, and that the messages coming through them were only emphasising that while you posses the potential abilities to be a reasonably effective spirit medium, that in the end it is almost entirely your decision whether or not you are prepared to do this type of very challenging work.
I feel that Rosemary's word chaotic when applied to your life was a bit off track, but I agree completely with her that you always try to give more of yourself to others than it is often healthy for you to do. No matter how gifted you are as a medium, not getting your own equally important needs met as well and trying too hard will only effectively block your mediumistic abilities, which is precisely what I think that the second medium was probably getting at. It obviously came across to you as being a sign that this was the wrong path for you to take, when this was never intended to discourage you from persevering with your efforts. Your problem is I sense more of pushing things along before you are adequately prepared to deal with them in a responsible manner, or of jumping the gun, rather than it being due to any lack of psychic ability on your part. The more different mediums you consult, the more I fear you will become confused.
Please post any questions you might have on Spiritalk's Mediumship Q&A forum. It is exactly because members are frequently not able to find a good listener in their own local area that kind souls such as Spiritalk provide this valuable service with no expectation of material reward.
Hoping this helps,
eye_of_tiger 