In my opinion, an absolute newbie should stay away from using leverage in their trading.
Leverage presupposes high risks. If you don't know how to trade properly, it is better for you to start with the no leverage trading. Surely, if you use leverage, then you have bigger potential profits, but your mistakes become more expensive as well. Instead of losing $0.5, you will lose something like $2 or it can be even more. So, a newbie can operate with the small trading budget but he still needs lots of practice. Imagine that you are ready to spend $100 on your practice. If you trade without any leverage, then you can make 100 deals or more in the worst case scenario, however, if you use leverage 1:5, then you will be able to do only 20 deals in the worst-case scenario.
You should understand that it is not the absolute profit which matters on the early stages of trading. First of all, you need to learn how to make profits, and only after it can you aspire to make decent profits. If you want to do both, then you run high risks of losing your budget. So, concentrate on learning, rather than gaining profits if you are a newbie.