Bitcoin community is for those who are into bitcoin for a while and have a decent amount of experience to share with the community for best guidance in this era of information.
As a Newbie First you must gain knowledge about Cryptocurrencies, knowledge is endless but searching right kind of knowledge from the right source is necessary, Learn the basics about cryptos what are they, how they work, trusted platforms for exchange, companies exchange rate on trading as well on withdrawals, payments methods, type of security they are providing, look into their policies, TnC and other details.
All the above comments are right, trust no one but you have to be knowledgeable enough to trust yourself. Trading is fun when understood properly and the same goes for life. Also, Make sure to be in touch with these kinds of forums, it helps a lot in gaining experience about the trading market.
Have a safe and secure trade- Shiftal