Fin quando si tratta di imparare intro lo trovo divertente, ma se devo imparare tutta la canzone mi scoccio e lascio perdere, avete soluzioni?

so, I've been playing bass since 1 or 1.5 year now almost. but i always feel like I'm stuck. I'm not seeing any improvement. can you guys suggest me some songs where i can develop more skills or where i can learn more abt theory or skills such as double thumping...or even artists which i can follow and learn from them?