I believe you are highly likely to be 'wabu27' the juvenile ET troll who is authoring the thread 'Took out a loan to transition to full-time trading. 24 years old.'
I feel so sorry for Barings Bank though, a bank that has stood for over hundreds of years, basically centuries in time, weathered through everything in history and then getting single-handedly destroyed by just ONE person. But then again, if you say Nick Neeson is a rogue trader and a gambler, it was really Barings Bank that was the bigger rogue trader and the gambler. They KNEW that Nick Neeson was denied broker license because of fraudulent application and still entrusted him to trade huge positions and allowing him to escape supervisions by breaking protocols and rules that were set up in place to exactly prevent gamblers like Neeson all because why? Because Neeson was making them 10 million pounds a year so they gambled that he would continue to make that much money in the future instead of prudently monitoring him to ensure all his trades that he made were based on sound investment judgement and within the risk capital limits of the company. That short strangle was so stupid betting on something that he KNEW could potentially have huge volatility cuz when he shorted the options he's must've earned huge premiums so the implied volatility must've been REALLY high. And he never thought of hedging in case the market is right and he ends up being wrong? If he had placed a iron condor instead of the short strangle, Barings must've still survived and he might still be trading. But he went for that 900% return and Barings let him... Great movie though. Thanks for suggesting.
I will quickly solve this thread's problem so we can move on... So let's assume everything is true whatever the OP said. This is the key info. He doesn't have a money problem, he has a time/health problem. Thus the question isn't how to make a gazillion % return in the shortest amount of time, but how to use my limited time to live the best way with my limited money? The answer is pretty obvious, instead of wasting time trading, why not enjoy time living? Move to a country (East Europe, Asia) where the leftover 100K is still good money and enjoy your 3 years left. Live it to its fullest. Because what if you do make 900K but it takes 3 years and 1 week left to enjoy it? Would that be an efficient way to use your time/money? Of course not........ There, end of problem...
Have you thought about position trading? Find companies with low tangible P/B, low debt and preferably with retained earnings which implies entrenched, inefficient management that are not investing on R&D, updating buildings etc. OR that the company is in a highly cyclical industry ( beware of unrealized non-cash earnings eg Enron) and wait for either a buyout, change of management or cyclicality to shift. Stay out of industries like utilities with capped earnings capacity and since we know that you can make the right analysis and still lose you'll have to divide your pot of cash into three or four bets and hope that you hit a grand slam. Best of luck! PS it's not easy otherwise we all would have done it but it is a way to go...
Back to 800K is 3 doublings. Year 1:100->200 Year 2:200->400 Year 3:400->800 That is doable if you use leverage with a positive expectation trading system but you have to be prepared for losses and drawdown periods as well. You need a niche trading system that is high expectancy but is not scalable enough to making much more than six figures a year. But no one who has spent years finding such a thing is going to disclose it to anyone else.
Iron condors. Put around 90% of your account on the line each month and you'll return about 10% a month. All you need is for the market to stay relatively flat for 3 years. I know someone that did it. He thought he was superman for a while. He was even convinced he'd be able to work his way out of a bad month. Everyone that knew him was telling him to stop. He ended up exactly where you are now, with a fraction of his balance. But the strategy does fit your requirements. High returns with a risk of complete ruin.
Well, I think that everything is possible, but it´s not easy. For exemplo, there is a stock in Brazil that reached 3624% from jan, 2016 to sep 2017 and it´s not a virtual company, the contrary, it´s a big retail company, with more than 100 stores in the country. Who bought and hold until now (i recognize that it was most difficult made this...), with US $ 5.000, nowadays has US $ 186.000. Chart is above to prove it. So, I wish you good luck.