i think, its fear of losing and fear of missing, no risk management, expecting unrealistic returns and running behind holy grail indicators/signals.
have done that myself as well :)
its never late but i will suggest to look at job market in your location. I know in US, currently there are lot of companies doing layoffs so its little difficult to get in. Also it depends on your compensation requirements, if you are looking high salary, it might be difficult but for average...
i don't believe there is such strategy. Some strategies works in bull market, some works in bear market, some works in range bound market. also strategy is not the only thing you should be worried about, risk management is the most critical component in my view. I won't say, i am profitable but...