yesterday, today and tomorrow

I painted a rainbow but I doubt if I saved a promise
I sang but I doubt if I gave the right melody
I danced but I doubt if I made the right steps
I searched but I doubt if I found the answer
I taught a soul but i doubt if I made a difference

I write but I doubt if I am read
I express myself but I doubt if I am understood
I smile but I doubt if I am captured
I speak but I doubt if I am heard
I sow but i doubt if there will be harvest

I will keep my dream but I doubt if it will come true
I will wait but I doubt if there is something to hope for
I will fight but I doubt if it is worth the battle
I will move on but I doubt if it will be a great journey
I will survive but I doubt if it's possible without YOU!