As life changes, so will your goals and aspirations. You have to be okay with that possibility and follow your heart as best as you can at this moment in time. Life is a journey and your passions are what will guide you through the experience. On the other hand, medical school is a big commitment and is not a decision to make lightly. Talk to people who are in the field you wish to be in and who are in school for what you plan to go to school for. Understand what they're life looks like getting their degree under their belt and then decide if the sacrifice is A) worth it and B) if you are willing to commit to it. You will make the right choice. Best wishes - you have your whole life ahead of you!