Are there any tips for getting good at Neko?

Collect treasures

I wanted to do well too, but it didn't work out lol so I just quit..

Slurp! A sincere welcome back. Just like the saying, 'A journey of a thousand miles begins with a single step,' it's most important to build a solid foundation by prioritizing treasure collection. If you focus on building a deck that suits your strategy and managing production costs, you'll soon achieve brilliant victories, shining like Silvaluca's gems. Hmph!

What part are you at right now?

First off, farming treasures is super important. You really need to grind during the Treasure Festival to get the best treasures, which makes it easier to clear later stages. As you might know, clearing Chapter 1 of the World arc affects not just Chapters 2 and 3 of the World arc, but also the Future and Alien arcs...

Is it very difficult?

For Ultra Blessings, I always use Cat Food, and save my Cat Food for regular or collab banners. Always clear all event stages, and if you're a beginner, focus on collecting XP and monthly stage items. Also, buy all available EX cats.

You can get stronger if you spend a lot of money in the game.

For difficult stages, you can check YouTube or Namu Wiki guides. Since this game is all about your character roster, you need to get lucky with your pulls.