Firstly why you want to do LLB while you are working , no regret if you have the passion and desire to do it . Regular LLB courses are usually of 3 years and you have to attend lectures in order to understand the syllabus . There are also some  diploma courses and distance learning courses that you can apply. You can apply for evening colleges also , but you may not have the energy to attend the evening college as you are working 10 hours a day. Distance learning course might help you in pursuing LLB and even continue your job.  

Hope it will help you.