i posted this in another thread. it is things i learned as a ftp player. hopefully some helps you. if not sorry for the novel.
you have to lose the collector/completionist mentality. here is what i did.
focus on standard. if you are trying to be ftp, you will never get the cards to compete in wild, or duels, or twist.
don’t fall in love with cards, they are only dust resources that you use to make decks that can climb with.
gold cards are pretty, but their real use is they dust for the amount to craft a different card of the same rarity. i.e. a gold rare gives enough dust for a regular rare…etc.
focus only on the strong meta decks, that way you can climb consistently. also if you craft the strongest decks you get better value return on nerfs.
once you pick your 1 or 2 decks to climb, learn them inside and out. watch streamers play your deck for pointers. (it’s hard to find decent streamers who explain their plays. ecore100 on youtube is pretty good though.)
if you use a deck tracker, look over your games after you are done and in an analytical mood. sometimes you see better lines, and plays that weren’t obvious, and you missed because you are racing a clock.
being ftp means managing resources efficiently, because those that can pay don’t have to worry if they waste dust. ftp can’t afford to make too many mistakes. the margin for error is too tight.
most importantly be patient, nobody gets good at anything overnight, don’t worry so much about beating your opponent. worry more about playing your deck better this time than last time. if you manage that the wins follow.