Whether or not increasing your workload is worth it depends on your skills and needs. If a second job makes you feel more passionate and excited about working or earning more, it’s probably a good opportunity. But if you’re already stressed and approaching burnout, adding more responsibilities to your plate will only make things worse. Splitting your employment time is risky — you can burn out, fumble responsibilities, or jeopardize your job. Before making the decision to manage two jobs, consider some of the risks.
Summary from www.betterup.com