A solemn letter from the past

Dear future me, Oh boy... I remember in November 2017 how I sent a letter one year in the future to future (now past) me, and when the fateful day one year later came... I forgot to check my email. Now, having rediscovered the site, I suppose I'll write another letter, and skip a year for extra measure. Maybe this'll become a yearly tradition? How's 2021? Sounds weird hearing that. Even though it's 2019, replacing that '1' with a '2' just feels weird and icky. Well, anyway, you should probably do something with your life. Don't just sit around there. DO SOMETHING! Well, that was a nice reunion, doncha think? Rhetorical questions aside, while I'm here, I might as well uh, discuss stuff with you? I know I have a tendency to write or say things that are later cringe as fuck, but might as well. No harm to it. Is the future fine? Are you being invaded by robots or whatever sci-fi concoction is hitting movie theaters next summer? And, now, thinking about it, this whole idea of a 'future' or 'past' self is wack. There is only the past, and the now. We might try to pick apart the past to conform our future, but the truth is, unless everything is predetermined, that by constantly thinking of the future, you ignore the present, diminishing what you do now. Anyway, I suppose from my perspective you don't really exist since the future hasn't happened yet, and from your perspective I don't exist, and all that's left of me in 2021 will be a far fading memory in the back corners of your brain, if even that. Weird, then. Two non-existent people sharing a letter - one writing and one reading. Saw this thing on Reddit the other day, how your future self spies on you through memories, and can't help but to glance around the room quickly to see if you're there, watching me, or if this memory has completely faded and you remember nothing of me. If you are spying on me, give a little secret message to show which stocks are rising in 2021, would ya? Am I dead in 2021? Dear god, I certainly hope not. Doesn't really matter, because the future hasn't happened yet and no one will see this message unless I click the 'public' option down there. Should I, future me? Should I click the button? Make the tree outside shake once for yes, and twice for no. Should be easy, its quite windy outside. Huh, the tree shook once. Was gonna go more personal, but that can be saved for another letter. Find one in the mail soon! :) Sincerely, Past You