<human>: Hi reddit!

I love music a lot and I want to be able to play a musical instrument. Since I like piano, and somehow it seems to have so much more emotional depth than other instruments, I began taking piano lessons about 2 months ago. Okay, here's the thing thats been bothering me. 

The problem i'm facing is, my aim in learning to play the piano (or any instrument) is to be able to play any song I hear without the need of music sheets. I've seen many videos where the pianist says he/she just plays it by ear. I want to be able to do that. Which seems to be a tough thing to do given that have no musical background whatsoever. So, considering my goal, should I continue to learn to play the piano or switch over to an other instrument? An easier one maybe? What are your views?

I'm 23 now, and can spare 1 hr each day on weekdays and 5 hrs each day on weekends. I don't mind even if it takes 5,10,15 or more years. I just want to be able to play any song just by ear. Can I do this? What is your advice?

Can you give me a shortened version of the text?
<bot>: I want to be able to play any song just be ear. Can I accomplish this with the piano or should I switch over to another (easier) musical instrument?