I don't think you can get the divorce within a year time...... it's very difficult, you have to do so many things and still it's not possible...........
You should give a second thought, if possible to continue that is the best solution in you case............ you should have thought before 3 months (your marriage)...........
Also don't indulge into any false lawyer's advice and filing case on them........ that will never get you divorce even in 2 yrs.........
Tell your husband and your family clearly about your idea and all the real thing........ it's hard for them still once you publicaly (with family and relatives) tell your idea they will surely think about divorce............ also tell clearly the reason you have even if you have an affair/bf.......... that will give you the mutual concent divorce fastest...........