I understand your experience for 4 years, but scalping is not only from experience,
what must be observed when scalping is reading the cycle and market situation,
if 4 years of experience still can't read it, of course everything is meaningless.
4 years is a long journey. If the OP still doesn't understand and has not mastered it, the OP certainly hasn't learned much.
Scalping is indeed a fast trading style that is favored by many traders. Including me, I like scalping techniques because we will benefit from every entry we make. Need to learn technical analysis to be able to read where the price will go, without technical it is certainly not easy to do scalping.
Scalping also requires a lot of capital to get more profits.
Scalping will be very suitable for market conditions that are currently downtrend. Take a bit of an advantage and run away.