Q: how can i teach myself bass guitar and/or how did u learn
A: i nice strategy is to plug in (to a practice amp or any amp, just make sure it's something so you can hear it) and practice along to your favorite recordings, and kill the low frequency on the recordings. this can usually be done in your music player's equalizer, or, even easier, just listen to the music on laptop speakers or phone or tablet speakers without plugging in headphones. you can't hear the bass on those devices. and play along