If a career in commercial law is what you end up deciding, definitely go for but commercial law is one of the most difficult areas to get into. Whether you go down the solicitor or barrister route, getting a training contract or pupillage is very competitive. Add to that commercial law makes it quite challenging and you have to be extraordinarily amazing. To give you an insight into why its so competitive, numerically speaking, a chambers I know of is paying their first year practicing barristers up to £360,000. Many of us may not see that much money until many many many years later in our careers, if ever.