Very frustrated with loud neighbours, their kids, maids and guests, please suggest solutions

I am very much frustrated with my loudy neighbours who even after repeated requests doesn't stop yapping outside their house. It creates problems, because: 1) There is literally no gap between their house and ours. 2) Either they stand outside their home or seat at the outside pathway of ours and talks, at times it goes on like for hours. Last I beared them for 4 hours, continuously. 3) I have politely and angrily requested them not to talk here as I hear all the noise inside my room which happens to be near the front door. My only objection is their talkings disturb me in my work and I can't read/do my work or job at hand. Sometimes, they even disturb my sleep. What can I do in situation like this? I have last time even threatened them with a police complain (I didn't make any just tried to voiced my problem) but to no avail. At times, I feel like hitting my head over walls of my room due to this noise. It is getting unbearable. My family members doesn't support me in this fight. Could anyone suggest me with practical options to deal this situation? Can I indeed make a police complaint? What options do I really have in this case? I am really in a serious problem and at times feel like killing self due to this noise. Please help.