Sorry for late reply, I have not been on the forums in a little while. I will tell you what I did to gain that much in that short amount of time. I will also tell you that I have hit a peak where I am not exponentially growing anymore. I have not really done the math but I make about 1-2bill a day that I am trading.
I have already explained that I started in Amarr with ammo then modulus but I will also tell you that sense I have Created the alt in Jita, I spend about 75% of my time there compared to Amarr, Dodixie, and Rens Combined. There is a ton of opportunities out there, expecially in moving things between trade hubs if you know where to look. Which brings me to my next point, Research.
On any given day I would spend about 4-8 hours marketing and at least 2 of those hours were spend researching. In the beginning, I would spend this on Youtube videos on how to market and what margin trading was and other general terms so that I could get a good grasps on the basics of trading. Then I spend many hours looking for the best websites that could help me find items with good margins and good volumes. That is where I found Ammo to be a good source on income for the amount of money I could invest at the time. I eventually found this Website https://evetrade.space/ that I still use to this day to find other items that I might invest into. This helped me with station trading and station to station trading.
Station Trading is pretty self explanatory in just found new items within the station to buy and sell. Station to Station trading is a little different and need to spend a lot more time researching. One of my best find was the Gila. At one point, I was buying Gilas in Jita for around 220mil and selling them for 330mil in Dodixie. Now of course the volume in Dodixie was much lower than Jita but I still managed to sell between 5-10 a day. Little items like this really add up when you find huge margins like these.
It really just boils down to putting in the time. Researching for me, was the best part of marketing and I enjoyed doing it. The big bulk of the time was spend updating prices which can be a pain to do. When I first started, I did not have that many orders, so I updated every single order (about 100) many different times a day. Now with over 600 orders, there is no way i can do this. I look for about 20-30 items that make me the most money for the time and update those many times a day. The rest of the orders I update once a day. In jita, I try to update those twice a day.
That is basically it. It really boils down to a couple steps. Research, Invest, and Update. Every week on your days off you may want to do some extra research because price change and you may need to which up you investments if your margins get too small. Hope this helps a little bit in your future eve trading. I am still learning and growing as a trader and certainly am not the best out there, but still think I know a little bit when it comes to trading.