Tense and second-person aside, you should handle this just as you would any other transition. Set the scene, reflect on the past, and then summerise the outcome.
I'd do something like this:
You put your tools back into the bag and look out over the yard. The
twins are giggling at some secret joke. They remind you of Alice and
Jane. For a moment you wonder how Jane coped with the death of Alice.
Your guilty conscience tugs at you. Its been ten years but it seems like yesterday. Should have caught up with her
long ago.
You wonder for a moment if Jane knows that Zack and Benny
are up for parole soon; you doubt it. You carry your bag inside,
vowing to phone her when the twins are asleep. As you set the bag down, you realise that you never make that call.
What I am aiming for with that randomly cooked up example, is connect with the past and thus show that time has passed. Because only moments ago, your reader was "living" the story, it should be easy to play on that sense of "it does not seem so long ago that...".
Time jumps in published fiction
One of the techniques that writers often use to prepare a reader for a time jump is to make one or two shorter jumps at transitions (part one to part two, chapter six to chapter seven, etc.). That's more difficult here as you are already wrapping up. You just want to pay off the outstanding elements and wrap up the loose ends.
One way to have a single multi-year time jump is to simply have foreshadowed within the main story. So in my example, if the story had "you", Alice and Jane agree to phone each other at least once a year, the pay off here is that you are showing the reader that this never happened. I would probably foreshadow that by introducing themes of childhood promises broken in adulthood.
Make it clear
Other than that, it really doesn't matter how you do the jump so long as the jump is clear quickly. Don't let your reader assume that this is the next day by letting them understand that time has passed.
I would seek to allow the reader/character to reconnect with "the past" - this is so that this jump feels like a continuation of the same emotional journey.
Smooth the bump
Time jumps can be disconcerting. Which is why I made a point of talking about connecting the new present with what is now the past. Anything you can do thematically, narratively, or stylistically that smooths over the bump will help keep the reader engaged.
Keep it short
A time jump - especially a long one - can disconnect a reader from the story. As this is your swan-song, so to speak, keep it short and that disconnect will work for you. The epilogue will feel like that moment when you are waking from a dream. You know you have been dreaming but until you are fully awake the dream still lingers. That feeling can be used to make the epilogue feel like a satisfying conclusion that wakes the reader from the story but only if it is short enough.
Conclusion: Just tell the story
In case you have not guessed, my conclusion to all this is - just tell the story. It should be fine. If the end does feel too abrupt, then you can work on it in editing. Cross that bridge if and when you come to it.
