You don't need to explain your self just to make other people believe in you they have their own mind and decision in life , let them what they want to do . No one will understand you If in the first place they don't want to listened . Let them see it to happen so they can decide on thier own ,no need for more explanation you are just wasting your time and energy to the person that you know will not listen to you.
Yeah, definitely. And in addition to that, just focus on your life as well. If what you are telling them turns out to be right and they did not listen to you, then it's not your loss anymore. It's theirs and it's their fault. I'm sure you know the saying "you can't please everyone". You just can't. We all have our decisions in life and pushing everyone to listen to what you're saying would be a complete waste of time and energy if they are not showing even the slightest interest to hear you out.