All I can do is be myself, do what I do, and in that way, I am at least true to myself regardless of what someone hears, whether or not they’re even listening. My responsibility, nay, obligation, is plant the seeds. If I’m not there to tend the garden, I cannot be possessive about the outcome.
Your other train of thought is a road I traveled many years ago, and, in its own cat chasing tail way, it served as a path to salvation of sorts.
Thoughts initiate a distinct biochemical action/reaction that is heard/felt/experienced on Alpha Centauri and beyond, ad infinitum. Before you even think the thought the energy emanates in quantum waves one day to return exponentially greater. Think good thoughts, reap the benefits of what you sow.