When you are a Captain, it is your job to mentor your crews. Support them, respect them and have their backs. Always. They will happily do the same for you. Let them know when they are handling things well and doing a good job. Never take them for granted either.
It's a team. Be the coach and let your players shine. Your F/O isn't just there to take over if you suddenly find yourself having the pukes from those clams you ate Fu Hang Dou Jiangs the previous evening. He has an education, experience and training. Give him some landings and takeoffs. Listen to him, you might learn something new or a different way of accomplishing some task. Mentor him, embolden him and teach him. Do it humbly. Encourage communication in the office. Ask his opinion.
Don't get into the pilot/management gossip b.s. and whatever issues your company may be going through. Forget politics and religion. There a million other subjects you can yack about and plenty that you can learn from one another and share. No one needs or wants drama at work. There's enough of that in real life.
Be the professional that you expect others to be. Be the role model. Just remember that no one is perfect, not even you. Expect your crews to do their very best, but also encourage everyone to have some fun along the way and enjoy themselves. Everyone responds to being appreciated and understanding that you are there for them.
Buy your crews some drinks and dinners. Spend some off time with them, just being yourself and leave anything to do with work behind. Take an interest in them and get to know them.
You are the final authority. But you aren't a dictator and others opinions matter. Never let yourself be pushed, by anyone along the chain. You are the one who is ultimately responsible for the welfare of your crew, the pax and your aircraft.
Remember why you went into this profession in the first place. It doesn't matter how long ago it was, remember the first time you soloed in a plane. Remember when you used to love to go to an airport and watch all the jets coming and going. Take a walk around sometimes. Enjoy the views, they are spectacular and you are lucky to have them. Take advantage of your overnights. Explore, try new foods, meet new people, have an adventure or two, and have some fun.
Be excited about your career and thankful. Find ways to keep it interesting and fresh. There is always more to learn. Always.