Welcome GeekLife! Buckle up, it's gonna be a long and bumpy - but fulfilling - ride!
Good to see you found the tutorials! That's a great, if not mandatory, start of your NESMaker adventure. The beginner tutorials are pretty much about getting used to the UI and getting a starter project up quickly, personally I feel that the Intermediate (and later on the Advanced) tutorials is where things get interesting. Also, 12 Days of NESmas is a great intro to the software, so I'd suggest you watch that as well. All those can be found on
https://www.thenew8bitheroes.com/learn, but I think you've found that already
There are fairly active NESMaker communities on Facebook and Discord as well, so if you feel like joining those, here are the links to those:
Facebook:
https://www.facebook.com/groups/NESmakers
Discord:
https://discord.gg/sZfqSXCu (link expires in 7 days)
Good luck, have fun NESMaking, and feel free to ask any questions you have on your journey!