I agree with others that it is quite difficult right now to make much money in this bear market day trading.
Day trading might be very much difficult for making profit but it is not impossible. If it was impossible then every person stopped buy as a result sell price should go lowest and more chance there could have no transaction.
Indeed, you can be profitable in day trading although only few traders can do that.
Mastering your skills is very important as every decision when you are day trading is very crucial, it could give you a big losses if you are not too diligent.