Cutting trigger music for imvu...volume to low

Hi, I wanted to post something. I need help with Audacity. I’ve been using it for a while now, and the volume was fine. I don’t know how, but it’s changed; the volume is too low. How do I fix it? I’ve tried the amplifier, but it doesn’t work! I’m just ugh confused.
I’m cutting triggers for IMVU music triggers.