You will surely do remember. Nothing is lost. If you don't remember it's a matter of your own bad memory.

Also, when you enter the afterlife you may be taken by a higher spirit to view the essential parts again of your past life like you were standing right in the middle of it at the time it happened. It will give you a clear picture of how you have truly been in your life.

So your memory will stay with you. But when you are reborn for a new life those memories sink back into the unconsciousness.

When you visit places where you have been in your previous life you may encounter feelings like you have been there before. I had that when I visited Vienna when I was a teenager. So I guess I have been there in my previous life or the life before that.