Start trading crypto for a newbie is hard without preparation, and in my opinion even if you are prepared. The safest and easiest thing could be to work using arbitrage system. You take advantage of price differences of the same coin on a different exchange. The example you can buy BTC at 5500 on Cryptopia and sell at 5600 on Binance ( if there's this gap). To do so you should use software or use some online service that shows you in the real-time price difference. ( there are several searching on google "arbitrage crypto". But you must consider the cost of transaction x2 ( very often 0.2x2=0.4%) than, trades where profit is less than 1% profit is useless. You need to check the quantities as often are not available. This technique is valid if you do many trades per day with little profit but is safe. ( consider that some trades could not go through due to market fluctuations).