There's nothing called hold by trading. It is just a normal trading method. Buy at dips and sell at high. The only thing is that, you are trading with only a single pair and loosing all other opportunities. Holding is an investment method and trading is not holding.
Trading is a game of risk, Trading is a predicting short term price moving and holding is predicting the same price in long term. Cause of too much manipulation in cryptomarkets it`s hard to follow the price. Price tend to go up when no one is expecting, price can drop all of a sudden without any warning, what you think how that is happen?
in theory it will work , but you will probably not be able to buy your coins back at one point . when you will sell for example and the price will go even higher , you can't buy the same amount of coins back . so at this point you will have to wait till it goes lower or take a loss and buy back at a higher price.
In one point you will sell to early, in others you will be late cause others dumped their coins already and you didn`t, in any case you will be short for fiat or bitcoins, whales earn you lose.
Trading is risky work, if you want to be a day trader you need info to be faster then others, you need to be online a lot. I lost a lot with day trading but that was my school, in this market mid term and long term trades are the best, invest in idea not in the price, and you will see how much better that can be.
Day trading is very time consuming activity. The foremost requirement of success in this job is to stay with the hourly changing price. Checking out the value every other minute can be very tedious, blowing up one’s mind. Above this, one should have a good idea of how bitcoin works on daily basis. Surely that is very different from its behavior on weekly basis. Day trading is riskier and trickier than long term trading but beneficial also.