Never pretend o know what you don’t know. But you can bluff your way through a lot of interviews just by doing a 30 minute Google search. Research the company, the industry, its governing body, key terms, awards, criticism, etc. Check out their social media.
I hope you don’t have to struggle with your weight. For me it’s been a lifelong battle. Some things I learned are: Listen to your body and eat when you’re hungry. Eat as many vegetables as possible. Ignore the scale and focus on other goals, ones that are in your control such as how long you can run (or dance, or row, etc.) Reading a book instead of plopping down in front of the tv with a bowl of ice cream, saying “no thanks” to a treat. Focusing on pounds lost or gained is deflating. Stay in good shape for as long as you can! Make your health a priority. It’s much harder to get in shape than to stay in shape.
Major regret: focusing too much on being liked (or loved.) You can’t *make* anyone love you. Some people just won’t like you… that’s okay. Make yourself proud. Do YOUR thing. Spend time on what matters to you.
Seek / Accept job offers that teach you something valuable. Now isn’t the time in your life to worry about the money or status. Get experience! Have fun, learn, grow, challenge yourself and try new things.
Reinforce this at every opportunity: “You matter.”
Kids respond to this message deeply, whether it comes from a positive source (parents/teacher/coach) or people who are only trying to exploit them.
Someone else’s success doesn’t subtract from yours. Celebrating with them and encouraging them won’t make you the loser and them the winner. We’re all in this together.
Start “home economics” school with them. Laundry, cleaning, cooking, how to change a diaper, comfort a baby, soothe a toddler, what's involved in caring for pets, budgeting for food, keeping track of maintenance schedules for humans, pets, cars and machines. Engage with guests, be a good host, etc. Know when and how to tell someone to GTFO of the house (racist or misogynistic speech, etc.) Every kid needs to learn the art and science of home management. Look for and point out examples in books and movies of good home science skills.
Anything you deny or fight will fight you back harder. Don’t fight the fear, pain, disappointment, etc. Let it in and let it teach you what it wants to teach you. Then you can part as friends.