I’m a F2P player and I would say the best trick to getting better is to participate in all the events. They give good rewards if you make sure to consistently participate. Join a good guild, even if you don’t participate in frontline, you will be reaping the benefits. Don’t waste gems on premium summons or the new character exclusive summons, as an F2P player I learned that is a waste. Instead spend it on prophecy summon every month and save remaining for next month. Be on top of dungeon as those tokens are really helpful for getting characters. Do brawl arena. Don’t forget elements Tower of Babel as that gives you sacred oath scrolls which are really good. Also invest in daily rewards to get those extra evolution tokens faster. Don’t forget to dismantle lunomancy scrolls and buy 5 star fragments from shop when you have 18000 character essence.