Certainly, it is possible, the only question here is for how long... To achieve such return one must undertake excesive risk on every trade. Therefore it is highly dependant on the particular entry and exit strategy - put simply you need to have really high entry and exit accuracy, to safely achieve such performance. Due to the high risk, there is not much room for mistakes. Unfortunately this approach is unsustainable in the long run.
Overall experience is that Intraday trading can not give consistent gain. Yes it is possible to make a 30% gain monthly average on a period of one year trading on the principal equity. Long term trading.
Yes, it is possible to make 30% a month consistently or even more, anything is possible, the thing is how probable and cosistent can you be. Just a few traders can really make it consistently, that is why the best bet is to shoot for less.
Yes, it is possible on average, some months less and some months more as I have done it and i'm currently doing it. The likely hood of keeping it going long term is higher if you trade manually rather than automated. Robots can't think so when market changes performance go down the drain. But with manual trading it is more than possible. Key is learn to trade yourself, understand how and why the market moves, discipline yourself, be patient, be persistent, have good money management, good trade management that's the key to success. No short cuts, no way around it.
I do not say about big amount but usd 1000 I have made 80,000 in 8 months. I do not know about big amount. If we have enough experience and have patience, in two or three month capital can be doubled. I have made 80000 usd to 10 dollars in a month
I'd advise you to try not to set your goal to a certain percentage. That way you try to tell the market what to do. And in reality, it's the opposite. Market tells you when to enter and when to leave. Setting limits and expectations is just not a smart thing to do in trading. You can have a month with %1000 profit and a month where you lose %1000. The trick is to be ready when your time comes and to stay away when markets are unpredictable.