How can I improve my self...does it take time or I can do it fast...Please help me out guys

You do have a very narrow jaw. If you are old enough u could try some jaw filler. Just remember to get it done at a proper place, and dont get too much too quick as it can migrate if u do that

You have a huge potential twin, the fastest way that I see to improve your looks is letting grow your hair and try to get more dark eyelashes and eyebrows