Starting a side hustle can be a challenging but rewarding experience, especially when managing a day job. To succeed, it's essential to know your end goal and set specific, measurable, achievable, relevant, and time-bound (SMART) objectives for your side hustle. You should also audit your resources, including time, budget, and energy, to determine what you can realistically dedicate to your side hustle. It's crucial to treat your side hustle like a business, registering and licensing as necessary, separating personal and business finances, and creating a long-term business plan. Setting boundaries with yourself, your employer, and clients is also vital to maintain work-life balance and prevent burnout. Finally, managing your time carefully, automating busywork, looking ahead to the future, and being realistic about your needs and limitations are key to achieving success with your side hustle.