Yes, many people have become financially independent or even rich through consistent investing, especially by following long-term passive strategies like investing monthly in index funds, ETFs, or dividend-paying stocks, but it usually takes patience, discipline, and time rather than quick gains. For most investors, reaching the point where passive income equals their salary can take 15–30 years depending on contribution size, returns, and expenses, although some achieve it faster with higher income or aggressive saving. A 30% portfolio growth over 4 years is a solid start, and continuing this habit allows compound interest to accelerate wealth over time, much like small regular purchases add up over time when tracking everyday expenses such as dunkin donuts prices , showing how consistency and long-term commitment are key factors in building significant financial freedom through investing.