1. You’re still a kid, and will realize over the years that you still will be a kid until around 30. Even then you’ll still have days where you wonder about your maturity (I’m 34, still wondering myself).
Get a credit card and put regular monthly expenses on it. Pay it off every month. It’s not the end of the world to have a balance for a while, but it’s easy to let your balance get out of control so build that habit of keeping it paid. Your credit score will thank you when you’re out of college or into your mid 20’s and want to start making some big purchases.
You don’t need everything new. There’s always something newer, something better, something improved. If you want something, decide what your criteria is, and then shop based on that, not based on what’s available. Look at both new and used options.
If you’re college bound, community colleges are great options to get started on your first 2 years. There are a lot of gen-eds to get through and they’re all the same wherever you go. You can always go visit another school on the weekend if you need to party. Plus, you don’t have the distraction mid-week if you need to work and study.
Get a job if you don’t have one. Doesn’t matter what it is. Just work. Employers ask about gaps in employment. Handling school and work at the same time is a desirable skill. You meet people at work. You make connections at work. You get references at work. No matter if it’s McDonald’s, cutting grass, interning in an office, etc – work is good.
Be reliable. If you say you’ll do something, do it. Be the person people can count on to get things done or help out. It’ll come around when you need help or when there are rewards to be had.
Be healthy. Work out however works for you -walking, running, lifting, sports, yoga, martial arts, etc. Find something that you enjoy or that will contribute to body-goals you desire. Working out now will make it easier to work out later in life. As for food-this is how you’ll maintain a healthy weight. Ditch soda if at all possible. There’s coffee and tea if you need caffeine. Limit your portions and your snacks. Eat more veggies and fruit and less meat and grain. It doesn’t matter how much you eat now, improving those proportions will help contribute to your overall health. There’s constantly more studies coming out saying that the best diet is more plant-based than animal based. You don’t need to be vegan, but just keep it in check.
Small changes make big difference in life. You don’t need to overhaul your entire life all at once. Make little changes as you go and you’ll be more apt to keep it up and go further towards whatever goal you have.
Worry less about what other people think. If they have a lot of opinions about others, they probably aren’t great opinions and shouldn’t be given much consideration. Most people, though, are more concerned about themselves, so keep that in mind when you’re feeling embarrassed/pressured/self conscious. Do what you need to and what your enjoy and you’ll be happier. People will notice that in you and they’ll appreciate that rather than judge you for what you do in life.
I guess that’s enough “wisdom” from me. Hopefully some of that will sound good to you and contribute positively.