One of the deepest habits we learn is interfering in others' lives. Even if we are not actively interfering there is a good chance it's happening in our heads. Then, when people don't do what we want them to do, which is usually all the time, our ability to relax is non existent.
If you want to interfere successfully in someone else's life, try this loveful approach. It begins with acceptance, continues with acknowledgement, is empowered by appreciation and ends in actualisation.
Only in this way can we help others be all that they can possibly be, and what else is life for, but to help others to be all that they can be. Only by making love practical in this way, can we heal our own habits of criticism, envy and blame. Accept, acknowledge and appreciate. It doesn't mean you have to agree, comply or condone. The paradox is that we ourselves will receive the same in the process, not only from ourselves, as we become what we give, but from others along the way. Why? It's the law!