From your short post, it is difficult to give good advice. For starters, try to define where the problem is. Can't you remember the piece anymore after a short while? Do you forget what the correct motions are to get through a difficult section?In any case, whatever the problem might be, the reason is most likely that you don't know the piece well enough (at least that is the case with me, when I have similar problems.) Try putting more effort in analyzing and understanding all aspects of the piece (structure, harmony, chord progressions, key changes, etc.) The more you know about a piece, the easier it is to keep it in good working conditions. Play through those pieces whenever you can. You don't need a piano to do that; you can do this in your head wherever and whenever (look for "mental practice").Also, there is nothing wrong with forgetting pieces and relearning them. It appears that once you have thoroughly forgotten a piece and relearned it two or three times from stratch, it will stick forever. I don't have a lot of personal experience with this concept, yet. I tried it only with two little pieces, and so far it seems to be working.Again, really knowing the music is the key (IMO)
i dun really can feel e music and e melody is nt fluent enough and my exam is coming soon i scare i might not able to catch up anyway wat u mean by mental practice