If you're making lots of trades per day and risking more than a few % of your trading account on each trade, and trading lots of the same pairs all the time, your not trading, your gambling and badly. That maximum I ever trade is 5% of my entire trading account and that's to the top of my stop loss and that's only if the set-up is a 5 star, I may do that once a week if I'm lucky, it's normally closer to 1-3%
Don't trade to just be in the market in the hope of catching a move down or up, against this is gambling and not trading. Set your position size based on where the stops are relative to the previous structure.
If you're a total beginner trading with real money just following other traders, firstly you are crazy, secondly, I wouldn't trade more than 0.25% in that instance, if I was happy just following others, always do your own analysis and within your own trading plan / account management.