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.
Only two times I tried to operate in Scalping mode and it has been very difficult, because to see the results you have to be a lot of balance to risk it so that when you get good gains, they are too violent movements and the adrenaline reaches the maximum test. Only trade in the medium and long term. With respect to 4 years doing trading and I still do not know very well at least it is sincere op, because for me I consider the trading as a profession, which, I will be a professional when at least handle $ 1m figures, and the truth is that I am very far from that brand, for now I have to continue reading and learning.