Then think of all the people who have claimed it would take generations, those who claimed any support for equality was a 'wedge' that would cause electoral defeat, think of those who when faced with the fact of this shift of the culture do not ask LGBT people how we did it but instead preach at us about how we should have done it, how we should be, what our history is.
Think of those who demanded we accept hate preachers like McClurkin and Warren, who harassed us for standing up for ourselves in the face of such open expressions of Straight Privilege. 'You just want a pony. It is just poutrage. It's just one little prayer!'
Think of those who whined 'you are letting the perfect be the enemy of the good, settle for civil unions' or 'be pragmatic, be reality based, marriage equality is impossible for a generation, at least!'.

Think of all those who had to be dragged toward the future, and when they opine about the next big thing, the next cycle, remember how wrong they were, remember who was right.
Don't just think about this progress, think about how it was accomplished, who was resistant, who was correct and stop listening to those who were not just wrong, but highly certain they were right while being extremely wrong. They said 'we are reality based' but they were in fact flat out, dead wrong. Stop listening to those people. They are full of shit and bluster and have no idea how to move forward on any political or social issue.