You gotta play with them. Down on the floor, at the park, in the water, in the snow. Connect through play, it will be the foundation of your relationship.
Discuss the concept that “It’s not always about you.” Some days need to be about supporting someone else in their joy - or sorrow. Your needs take a backseat.
***Manners!! *** Etiquette is the secret sauce. Everyone appreciates being treated with respect. Etiquette is the art and science of respecting others. It’s timeless and universal. Customs change, hence the need for constant study, but respect is always the foundation. In summary: Be nice. Start with yourself. Study etiquette. It will help you in every single interaction you have, social, professional, financial, everything. Manners apply to every human, in every interaction, even on the hard days. Hence, the need for practice.
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 isn’t something you “score.” It’s not a competition. Whether the encounter is casual or within a committed relationship it’s something that is shared.
Kindness is key. Practice being kind even when you don't feel like it. Let's all encourage each other to be kind always. (Or learn how to take a walk or go to our room when we just can't be kind in that moment.)
Every “yes” to something is a “no” to something else. Take your time processing the choices - write in your journal, sweat it out, listen to music, talk to someone you trust, read books from experts. Once you’re clear about what you’re giving up, let it go and don’t look back. (Remember there’s no advice that’s right more than 99% of the time. Always trust your gut. Just remember an impulse isn’t the same thing as a gut check.)
Teach your pets they can trust you. Take care of them. Treat them with tenderness. Teach them how to behave. (Unless it's a cat. You can't teach cats anything.)
Listen to books of love letters. I forget the title but one of the Bush twins wrote a book about her grandparents (George and Barbara). Stories about real love, real life. Fiction is great too but having a real world examples of happy partnerships is gold.