This depends on what you want.
Have you done some work experience/shadowing/vacation schemes/ internships to see if the profession is worth the investment.
If you are unsure then consider your options. I would not get to worried about it. The SQE is designed to make it easier to qualify as a solicitor at any stage in your life. This means if you do decide a different career (providing you have at least a undergraduate degree) you can qualify as a solicitor through the SQE route.
However, like I have said this is should be a decision of what is best for you.
Are you studying law?