Wow, really good friend this reflection, because you have a lot of reason, because the unsuccessful people only complain and criticize and envy the others because they do not have or did not succeed, but something that they do not see is the effort behind, because when he wants to achieve something, one has to invest something too, and in the case of a musician, they are hours and hours without sleep, also missing out on weekend outings for a tour, or a recording, but all effort is worth it, rewards are worth it, really great your post :D
Thank you @fabian98. All the best!