This is the reason i always recommend every new traders to start trading with real money and don't follow any youtuber or telegram channel. As a newbie one can make many mistakes but these mistake will teach many skills and every mistake will increase your confident and next time you will be able to trade free of tention and as OP mentioned The more you trade your emotion will be controlled.
A newbie may decide to start directly to trade live account but it is better to go first through demo except the newbie has so much money to throwaway. People who trade on demo still make alot of mistakes while trading live account so there is no need being in a haste to start trading live directly. It is better to begin the mistakes from demo before graduating into live account trader. There is so much to learn in trading so no need to rush.