YouTube Hank Green “Study Hall.” It talks about navigating the mess of college and career choices, like choosing a major (and what a major is!) What interests align with which majors, etc.
If you feel like you can’t get your act together, that you’re less mature than some others your age, I have the recipe for being a grown up: Read, travel, help those in need.
READ everything you can get your hands on: books, audio books, newspapers, etc. Travel to places that are different than your experience. Keep a lookout for people (or animals, or groups or causes, etc) who are struggling. HELP those in need.
Sex: There's no single way to do it "right" but there are lots of ways to do it wrong. Not being respectful and tender towards your partner is usually at the root of "wrong" ways to do it. Also, there is no rush. You may think all your friends are "doing it." They're not. Take your time.
Career is so important to your life satisfaction. Do what makes you happy. If you’re really at a loss for what you want to do for work, then go where you’re needed.
If you see a kid sitting alone, he or she might be your next best friend. Go say hi! Ask him/her to sit next to you / play on your team, etc. No need to worry about whether that person is “too cool” or “not cool enough,” they’re just a kid. Like you.
Plastic stackable dresser - 5 drawers labeled for days of the week. Put outfits in each. No drama emergencies on school days, the week’s wardrobe is planned out.
Do what makes you happy. But what if you’re not sure what that might be? If you’re at a crossroads and you don’t know where you *want* to go, just go where you’re *needed.* That’s a good first step. Trust the Lord to take it from there.
Encourage creativity, science and engineering: Make a craft station / work bench for projects. Fill it with all kinds of art supplies, engineering kits, tools, pegboard, etc. Stock safety equipment like goggles and make sure the area has good lighting. Lots of ideas on Pinterest, etc.