This is a very personal question that no one can really answer for you. I, personally, would not switch because my goals do not involve being a lawyer long term. It comes down to that, I think. What do you really want? And is being a lawyer necessary or a particularly effective way to get what you want? So figure out what you want and whether being a lawyer is the way to get there.

If you really want to be a lawyer, then of course go to law school. But first find out what being a lawyer is all about. Contact firms and ask to have informational interviews with a partner or an associate. Ask them about their life. Corporate work is very different from criminal defense. Know the lifestyle that law practice entails. Know the realities of the industry.

For example, a JD alone does not guarantee you a job, and even less a high salary. And a high salary job usually means you'll be putting a lot of hours. For example, if your billable hours are 2000, you'll probably work 3000 to bill those. So you'll be putting in 60+ hour weeks. Hourly you're not really making what it seems.

But then also look at the positives of law practice. You can weigh your options and make a decision. Ultimately trust your intuition and not your ego. I find many law students are driven by the ego of prestige and are ultimately unhappy in their respective jobs (except for a rare few that really do love their work).

I'm just not fulfilled with my job

Figure out why.