What specifically are you having trouble with on Discord?
Go to The Jungle channel on the Banano server and ask questions, talk to people, crack some jokes, post some memes, give virtual high fives etc. When its abvious you aren't a troll a mod will give you Citizen status and then you're officially part of the community!
People will help you understand how to register with the Banano and Nano tip bots.
Explore the different communities on the Banano Discord. If English isn't your native tongue there's many different versions of The Jungle in different languages.
The Bazaar is for buying/selling Banano-Nano from other users through an escrow bot.
There's usually games you can play for banano, giveaways, rains from community members, a casino, airdrops etc...
Lots of friendly people that will be more than happy to help ya in