Never played multiplayer. I haven't beaten the main game yet. Can I still join quests?

Hey y'all. I'm still relatively new to MH. I just got this game over the weekend, and I'm having a lot of fun. LBG has improved so much for me since Worlds.

However, I know I'm still inexperienced. I also haven't beaten the main story yet (I'm close though). Would it still be acceptable for me to join some quests, just for the fun of it? Or should I wait until I get to HR?