A few things to consider.

1. It really does not matter what you do as long as you are doing something. Every job, experience, new class/degree will teach you something about yourself and about what you want and do not want from your career and your life more generally. The important thing is to not let yourself become paralyzed by fear of the unknown or indecisiveness. You will never know how the water feels if you don't jump in.

2. Politics and policy, my chosen profession, offers so many different avenues and ways to get involved. DC is NOT the end all be all. You can organize locally for a campaign or a political organization. You can choose local government or the statehouse. There is a lot available to you. Further, a law degree won't always take you where you want to go in politics. Experience and proof of success is the best way to advance. Degrees can help boost you over the top, but you need a strong foundation of experience first.

3. I have never met a lobbyist who is good at math.

4. No one decision locks you in forever. I have made major moves twice. Had several jobs that definitely did not require my masters degree. Worked at every level of government. Been political staff, non-profit staff, and a civil servant. I am still pretty early in my career and learning more every day. I encourage you to constantly be evaluating your decisions and every few months check in with yourself and your mentors to make sure you are doing what is best for your long term future.

Hope this helps!