Welcome to Tyria, tattyana!
Guild Wars 2 not only is very casual friendly but also has a hardcore parts! You’ll discover it through the gameplay at level 80. But first, you must learn how the world works and rushing the game to do it isn’t my advice. You should read everything people and npcs say and enjoy it! This is one of the best thing GW2 has! Its events are amazing and entertaining, creating the best living world you’ll find in a MMORPG.
In my opinion, if you don’t care about its lore, you’ll miss a great part of the game and you’ll be bored in a few weeks. So this is my advice
. Try to learn more about Tyria and its legends and become one you too! You won’t regret it!
About difficult content you have fractals, raids and pvp rankeds! You can learn more about them in the forum. Search their categories and read what the people has to say.
Hope you enjoy this beautiful game <3.