These are among my favourite beginner resources, not on the below list:
This curated list from r/conlangs is also a good start.
Ask A Conlanger (UPCOMING!)
Submit a question, Advice & Answers style.
This is my collection of linguistics-related articles, reference grammars, and a few books and articles from other fields. The entries are sorted by category periodically.
This video shows how I use Obsidian for conlangs.