My investment summary for first quarter of 2021 is a roller coaster ride. It can be so emotional seeing good gains at the start of the year to the huge dips for the past few weeks with one after another bad news, unusual sell-off.Many will agree that the portfolio is predominantly red (loss). I can only hope that stocks will rise in 2nd quarters.A few learning lessons for me.1. Be patient. This comes with restraint to wait for a better signal to buy as well as to sell. How many times have I bought too late and sell too earlier. 2. Have a mix of long term and short term investment. I was very much into short term as the market was moving sideway for a long while before the dip. So some long term targets can likely let me sleep better at night.3. When market fear, I enter. This is easy