For me personally, the main obstacle in my trading is the high transaction fee to be paid, and my trading plan becomes chaotic. Currently I'm lazy to run trading in bitcoin, and move it to investment while waiting for prices to change, hopefully the price will rise, Amen.
Where is trading at high cost? As far as I know the trading fee is not more than 0.05% and this is very reasonable. maybe you mean is the exchange of bitcoin to fiat and this usually cost 1% plus other cost.