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.
Pay attention to what people do and what they say. Try to look past their appearance.
This is especially true for women, who are almost always judged primarily on the way they look.
Glennon Doyle described a conversation about explaining to a child what "sexy" means: “I think most people are confused about what 'sexy' means. Sexy is a grown-up word to describe a person who’s confident that she is already exactly who she was made to be. A sexy woman knows herself and she likes the way she looks, thinks, and feels. She doesn’t try to change to match anybody else.
“And she knows how to use her words to tell people she trusts about what’s going on inside of her. When she’s angry, she expresses her anger in healthy ways. When she’s joyful, she does the same thing.
“She doesn’t hide her true self because she’s not ashamed. She knows she’s just human—exactly how God made her and that’s good enough. She’s brave enough to be honest and kind enough to accept others when they’re honest. When two people are sexy enough to be brave and kind with each other, that’s love." (The quote is longer, Google to find the whole thing. Wise words on a tough subject.)
Resentment is a sign you are giving too much and are in need of replenishment. It’s a good example of how even the “negative” emotions are on your side, interpreting your experience in the world.
Get talking. Trade off likes, fears, hopes, dreams, pet peeves, etc.
I like...
I get mad when...
I dream about...
It makes me sad when I see...
I’m afraid of...
I wonder about...
Sometimes I think the best way to take care of them is to teach them to take care of others: Littler kids, sick or disabled, those who’ve been left out.
Stage one relationship: first few dates. Stage two, you really like them. Stage three, you love them and are exclusive. Stage four: you commit to building a future together. You’re going to have many stage one and two relationships. Probably a few stage three, and if you’re lucky you’ll have one or two stage fours.