People who put aside 2k/month for savings also not thinking about retiring early and living on passive income..
With your salary, retiring early is a pipe dream, unless you are willing to survive on couple hundred bucks per month because you don't want to work. Instead, you should consider your investment/savings plan as a means of providing you with a sizeable nest egg to help supplement your income during old age, not completely replace it.
To greatly simplify matters, if you can survive on 1k/month, that would mean at least 12k in dividends a year. Assuming dividends are about 4% return, loosely speaking, you need to have accumulated 300k in savings when you retire. If you save 1k a month, you'll need 300 months, which comes up to 25 years of saving 1k a month. Chances are your salary will increase over time, so it's quite doable. But if you're planning on getting married and have kids, your expenses will balloon significantly for the first 10 years or so. Then if having kids, don't want save money for their education ah?
Long story short: not feasible to expect to retire early and live comfortably off of dividends. If you want to retire early, expect a fall in your standard of living.
Like what others mention below. You're young. Instead of having ridiculous notions of retiring early, why not invest in yourself and upgrade (get higher certifications, or better job prospects). That will directly help your goal of accumulating more wealth, and might even help you achieve your goals much quicker.