Immigration laws and processes are complex, and several factors may affect the time to get results. Some aspects are up to you and your lawyer (if you have one), and some are not. 

If everything on your end is correct and up to date, any delay is a consequence of the general process length, and your turn will come. 

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Why are immigration processes taking so long?

Have you seen cases similar to yours resolved before your case?

Many things have changed during recent years affecting processing times for most immigration cases and limiting the options immigrants have to obtain legal status in the U.S.

Different factors affect the time it takes for a case to be resolved, among them: