Not only large capital, but the selection of the right investments such as Bitcoin or top altcoins will certainly get a balanced profit. Losses will only occur when they are too panicked and do not believe in the investment made.
For newbies want to learn how to trade its really good to use demo accounts which is available on certain exchange, This article has compilation of sites where newbie could try to use Demo accounts for tradings https://www.hedgewithcrypto.com/bitcoin-demo-trading/
They could practice their skills their and its better to use this before spending so that they can minimize their potential losses on their first trade.