NLCS vs STHN sixth forms

Hey everyone! I'm currently at STHN with an academic scholarship but I have an offer from NLCS too. I've been at STHN since yr 7 so all the teachers know me really well. But, it is a 45 minute train journey from where I live whereas NLCS is a ten minute walk. I am more drawn to NLCS because I really want a new environment but the things holding me back are the academic scholarship (which rlly helps my family) and teachers at STHN. If anyone has been in this position before please could u tell me what you chose and why?