i do not do intraday
but i do bi-day trading
almost everyday
today buy tomorrow sell

After reading some books about stock investment, I change my mindset to dividend investing style. I think that dividend investing is more secure and provide income for me in long term. 

daytrading can be quite fun once in a while. ive only done it a couple times in the past 2 years.

Some solid dividend stocks still able to give good dividend and generate profit (although for sure, it will be less during recession) even economy is bad times.

In fact, during economy bad times, it is time to buy dividend stocks, as most stocks price will be depressed during that time.

For day trade, I would prefer go to futures, as ordinary stocks, the price fluctuation is simply tight, which hard to squeeze more juice out of it.
For sure, futures is a different ball games already.

Not exactly, this is where we see whether the counters you have chosen are resilient enough for you to use them as your income generators for retirement. When the economy is bad, we can see how far/much the counter reduces the dividend payout.

And then this is where your asset allocation strategy will come in and whether you have diversified enough or correctly to ensure you are still getting a certain percentage of the dividends vs the time when the economy was good.

The recent 2008/9 has been a good time to observe which were the counters that were resilient in their dividend payouts.

Anyway, good counters will still maintain their dividend payouts even in downturn times, no sweat. Furthermore, if economy is bad, everything also goes down, expenses, other asset classes, etc. Hence, all will go down together, it will sort of balances up.