Just start scalping now and you will enter the "fomo" went the rally of bullish momentum it's out. I know scalping was really fun & easy to gain a profit, but also scalping make you enter the fomo went the rally was really fast made you enter at a high price then went the correction come you got stuck at the high price, make you want to call "cutlose".
This is one of the major cons of scalp trading, because the trader cannot predict the market and the fact that TA does not work here, it makes scalp trading look like a gambling to me which is not so easy, the tension of having to quickly look for profit and quickly knowing when to enter and exit a trade so many times in a day is not an easy task at all.
Secondly, fees that one will be paying will really discourage the trader and you end up going home with a penny at the end of the day after paying so much of fees, wherein there is no assurance that you will hit big at a single trade to cover for the fees and still make enough profit. I personally prefer to just hold than this.