You cannot expect success without working hard and having lots of patience to keep your heads up no matter what situation you may face. If you keep jumping from one task to other without completing then there shall be a moment when you have nothing to do as you have tried your hands on all things but no success. But if your long-term hard work had not clicked then sticking to it might be harmful too. You should decide what is the dead end for your try and switch the track you have been following but never stop trying hard.
Even you have a small win you need to persistently keep doing things you love. You should not follow other successful people blindly because things may not favor you which might have been to them. You can develop good habits, consult with your seniors how to choose the next step based on their experience. These things might give you an idea how to plan your career.