Advice: how to go from BSW to BSN

I will be graduating with my bsw next year and already know I want to turn around and get my bsn instead. I came into college prenursing but switched to social work early on with the idea of doing medical social work. I didn’t have any drive, plan, or confidence in myself to stick with nursing and gave up on my dream of being a trauma nurse settling for “someting close though.”.I was recently terribly sick in the hospital and spent some time in the ICU and it put things into perspective for me. I just don’t know the cheapest and/or fastest way to get into nursing after I graduate and am determined as ever to go after my true passion.