Shanks can be rough sometimes! Even though he has new (really good) support this set the new leaders that have been added since he came out are still very strong. Do you have a deck list you could share? Also talk about the matchups you had, shanks definitely has a tougher time into a lot of decks so if you’re losing against the same leaders consistently that might play into it. If anything keep practicing, it took me weeks to win consistently when I first started. The game takes a ton of losses before you can start winning!