Stops working after a while

I really like this app but after eight months of use, it doesnt seem to have enough memory to store all the dreams because it stops working. It gets really slow and buggy. I even tried deleting old dreams and going within the dream and pressing the trash button wont delete it. It does but when I open the app again, the dream is still there. When I try to delete via the swipe left method, the page goes back to the current day and it takes forever to get back to the old dreams dates since the app is slow now. Please fix this issue. If its just text, why isnt the app capable of doing that many dreams?

&6789546))(::(&4 about Dream Moods, v1.6.1