Hello! I am a recent graduate with a Bachelors degree and I have a passion for human rights.?

I have always planned on attending law school, assuming it would be the best way to obtain a career in human rights(particularly human trafficking) advocacy, international issues ect. Though my undergraduate career was one of high achievement, but LSAT was not. So, I was granted admission to a mediocre private law school (Ohio Northern University). ONU offers a JD/LLM program with great externship opportunities, but is obviously not one of the top ranked schools. Basically, I'm trying to figure out what path I should take to obtain the career I want. Will a law degree from this school make me competitive in this type of work? Is the obscene amount of debt worth it? Is there another route that I should explore? I would really, really appreciate any and all feedback. I'm very anxious and feel as though I don't know where to turn.