How to get treated professionally in the begining before you get an opportunity ( if any)to prove yourself.?

I have noticed that there are always few who treat me unprofessionally and then I get treated like that by every one. This really has stagnated my career. I now strongly believe that my appearance and ability to bombard words is the area I need to be stong. Otherwise some one will be all over me with their superior soft skills. I am average in appearance and talking but quite good in technical skills. I tried hard to sharpen my softskills but I find that still I am in the same quagmire. Any tip that I can focus on now?