I don’t know of any Telegram group to help supports newbies, but whatever you need related to the forum can be found or asked on this forum for sure. Concerning Telegram groups in general, as with any other environment, you need to have your defences up though, as there are many scams being performed on such platforms (see for example Is it okay to trade on telegram?).

Reading through prior to asking questions is the best attitude. It is way better to post a specific question on something you want to know, that to post a generic question that denotes you have not done your prior search for the information.

Beginners & Help section is often answered in a kinder tone than in other parts of the forum, and if you do some background checking before asking, you should be on safer terrain.