It’s not easy. Law is a very competitive and expensive field to enter into. You’ll want to complete a 3 year law degree (or a conversion course if you’ve got a degree) and then do the SQE. If you’re just wanting to go for any high street real estate practice, your chances are better since the competition is generally lower. But that’ll likely mean you have to self-fund - can you afford to do so? If you’re thinking larger commercial real estate at some of the bigger firms, the competition gets more fierce but they often offer to fund the course.
There’s also the issue that you’re a career changer. While that is not a problem in itself, and I’ve seen a few in my time go through the training process, and it can turn into problem. You’ll likely be trained by lawyers up to 10-20 years younger than you. Are you okay with that? It’s already hard to adjust to the demands of a law firm, and I think it’s even harder for older career changers. The career changers I’ve seen, while having made it through the TC, didn’t actually stick around. It’s something extra to consider - you’ll be starting from scratch at the bottom of the barrel. It doesn’t matter what experiences you have, a trainee is a trainee.