Demoralize

feeling kinda demoralize right now..... because i cant seem to play River Flows In You on my piano using the piano sheet which i bought.. rmb i was saying i see many ppl playing different keys from me? i dun understand why.. and i think that i had just jumped into a deep pool without even knowing how to swim in shallow pool.. so what i'm gonna do is to just step back and learn from scratch again.. And i received another email from the neighbourhood piano school.. The piano teacher is telling me there is a class starting tmr at 6pm and she said i could join to have a feel and it would cost me nothing. Hopefully I will have time to go down? and of course i stopped taking videos of me playing piano after day 4 because i dun see myself playing anything more. I just cant play that song anymore because i cant read the piano sheet well.. Im just so demoralize now.. and im tired after work. Still havent polish my boots.. got to wake up earlier to polish it.. I shall go sleep for now. =( i feel so useless.. but i wont give up. I just need to sleep now and continue tmr.