Hey jongjtjt,

I can see what is happening. Your played notes are too soft.

You're also pulling off the strings too hard. Try to keep your fingers closer to the strings. There shouldn't be a ton of motion when you're lifting off. And when you do lift off to stop a note, don't pull your finger all the way off the string. Only lift your finger enough to stop the note from ringing, but keep your finger on it.

And play your notes harder. Those two things will help!

-Carl.