Unfortunately, your vote doesn't count anymore really.
The Adam ruins everything episode sums it up nicely:
https://www.youtube.com/watch?v=gzmeRkysAh4
(shitty audio quality, but you can find this episode and clips of it elsewhere).
How much longer will elections be decided by the handful of swing states? The majority of states are predetermined DNC or GOP, so you leave it up to Florida or Ohio most of the time anyways. Beyond that, super delegates and gerrymandering fuck up the rest of the election beyond control.
How much longer until this changes? Your vote doesn't mean shit most of the time. Even if it did, you don't have a candidate that can be trusted.