After I wrote my last message I had the thought that if my next life was a particularly difficult one, then it wouldnt be so bad if I had the knowledge and understanding that I do now - but when I am 10 rather than 49!!! I guess if you know who you really are beyond space and time and appreciate the illusory nature of our human life then it would be easier to deal with.
most likely you had more than one or two previous lifes. Some of them could be very happy and comfortable, and others miserable and painful, or a mixture of everything in one pot. We all have had that, this is a learning process. Each time we start here with no memory of our previous lifes, otherwise it would be so much confusion added to our data stream. It feels at first, that each time we start from scratch. And in a certain sense not remembering who we were last time, learning to recognize our new body and walking, talking, interacting with people, all of that we have to learn as we would never have had it done before.
At the same time, all awareness, all changes on a being level, i.e. in our entropy and Quality of Consciousness (QoC) come with us every time we would incarnate in PMR. It is a slow accumulating process, and when we gain knowledge and awareness on a being level it is ours forever. Keep in mind, that entropy level could be reduced or increased, and QoC could go up or down, depends on how you live your present life, what kind of intent you have, how you interact with people and etc. Not remembering helps PMR learning to be more effective and productive. Think about a very popular management idea of multitasking. Several psychological researches have proved, that only an insignificant minority of people are able to perform multitasking at their best, the rest of us doing much better, when we have a chance to take one step or do one thing at the time.
We have to grow up to reach to a point where we can take up where left off last time. It is relatively speaking is easiest and fastest part in a developmental task. Gaining new awareness could be slow and tedious, but it worths it, each and every bit of it. But you know this already. :))