I went from around 2K to a bit over 100K in about a year in the 80's. I was shadowing the greenmailers. Greenmailing was effectively made illegal a few years later. Things change in the markets (technology, crowd behavior, regulation, market dynamics) that may create or eliminate opportunities and you have to evolve with those changes if you are going to remain profitable. As Robert said, it's certainly doable, but it's harder today. That kind of compounding requires risk levels that make blowing up exponentially easier. My advice is to remove the 600 day target. Find your edge and be sensible about your risks and work the edge and let it grow organically.
If the market conditions are right for such and you're in the right market and the right time...maybe and only if TopStepTrader is allowing you to trade that market. For example, pretend something crazy right now is happening with Wheat and its lasts 2 years. Does TopStepTrader allows trading Wheat ? Even one of the Market Wizards Bruce Kovner (rumored to have begin with 3k...via his credit card) didn't do it in 600 days and he was hired by a firm before making his million in the markets. Essentially, he was no longer a retail trader via your requirements when he made his millions.
There are millionaire options traders but they don't qualify via the requirements set by Commodity Trader
He posted his requirements in this thread after I asked him to define the rules for such. Please read his statements again. Thanks. All the millionaire options trader I've heard about...doesn't pass Commodity Trader's definition rules.
Richard Dennis started with some $400 and then became 'king of the pits' and multimillionaire. Dan Zanger parlayed some $10k into $18M in the late nineties. I believe cases like these are exceptional, on par with winning a lottery.
You can do this with options. Specifically risk reversals. You could sell options in a different market and always be long vix options, for example, for 600 days.
Eliminate Richard Dennis...he wasn't a retail trader. His seat gave him a "professional trader" status. Eliminate Dan Zanger...he's over the 5k rules set by Commodity Trader. I think Commodity Trader is interested only in those that begin in similar status as he currently is in right now which is why his rules or definitions are so restrictive. Remove the qualifications he's set, we can name a lot of folks but none will be helpful because I suspect he doesn't have access to the markets most of these folks made their millions in nor are those markets currently in similar like market conditions that occurred back when those millions were made.