welcome to thr #nostr tribe! Don't worry it is normal to feel a lil bit lost because his is new to ypur way of interacting social media.
As someone who is fairly new here like yourself, less than a month of consistent use of Nostr.
Here what I found:
1.) You need to make an effort to find the content, people and tribe that you want to connect with. For starters, explore the hashtag which every Nostr client has it.
2.) Helping guides about Nostr: I posted a note here with the links and feel free to read them:
https://njump.me/nevent1qqsduxtxw6c25xrzajz7ntd7hw9f9lg38fekunrug29g7t9mpsq640spzpmhxue69uhkummnw3ezumt0d5hsygzh9xkejxn7pjugjuww6g6gwkqs27gd2ytq5zdj95xc7ww2wck7zypsgqqqqqqsplxsua
3.) Nostr is new and so does its clients. Therefore, take your time and be patient with it. Importantly, you are thr algorithm. It means you choose which client suits your needs. You may prefer a client that has algorithm like the centralised platforms that feeds onto your attention (luckily this is not available yet but it does not mean technically impossible!) or you could choose clients that are less evasive on your attention, read notes in chronological order or by hashtags or by topics. The topic categories is getting better.
4.) Lastly, if you have questions, I find that using #asknostr is very helpful. A lot of people respond to questions through it because I used it a lot.
I hope this helps and we are excited to have you around! 👌🤓🎉👏
Cheers, M