Hi Matt! Welcome to TCLA!
I am also a career changer on my first TC application cycle this year so know exactly how it feels!
TCLA is a great resource, the members are friendly and really supportive and there is great advice on all aspects of the process. The hardest thing I found was tailoring my CV and experiences for the legal sector, half of the battle is identifying what the questions on applications are actually looking for. Have a nosey around and although it takes ages, I would recommend reading through the previous closed threads on direct TC applications as there is a wealth of information. I found that really helpful.
Feel free to drop me a message if you have any questions, I may not be able to answer them but I can give you my experiences of what not to do so far. TC apps are definitely a learning curve and some of my first ones make me cringe reading them now. TCLA has been an invaluable resource in improving my applications.
Look forward to seeing you around the forum!