Look... Um... Don't take this the wrong way because global warming is serious shit... and the fascism trend is super scary... But don't think you're the only generation that has a scary world outlook. You got to live your life. You've got to get the most out of this world that you can. As hard as it is to believe, things are better now than they ever have been in the history of time. Unarguably.
There are many things to be unhappy about, there are many things that we should fight to change, but it's self-defeating to only see the negative and to be this cynical. You have to see life as it is and enjoy the positives, savior the positives, Go out where the weather is good, find a special person and bask in their company, And yes, start a family with them. Create a pocket of goodness in your little slice of the world... Keep the rest of the shit out. Create memories and love and laughter and joy where you can. This is the way it's been done since forever.