Do you dream about changing careers but worry that the costs of switching are too high — and that the possibility of success seems too remote? Instead of plugging away in your current job, unfulfilled and slowly burning out, do both: Keep your current job while pursuing your new career. You don’t have to forgo sleep if you can find ways to enhance your existing role with your new pursuit. For example, if you’re interested in becoming a public speaker, look for ways to build your presentation skills within your current company. Volunteer to take on the next company-wide presentation or join a panel at a conference. When you follow your curiosities, you’re more likely to feel fulfilled in life — and to be more satisfied in all of your roles.