Every newbie that got in here and are still not familiar must start from the basics of learning everything about cryptocurrencies to avoid or lessen committing mistakes with regards to investing with cryptocurrencies. They must know first what they have got into and acquire knowledge that they need to be able to be familiarize on everything they must know. Doing research is really a great help for better understanding. Once you have acquired knowledge, that is the time you get to explore the investment part and do the same thing of understanding how investment works and apply what have you learned on familiarizing yourself about cryptocurrencies in the market.
Investing into old and reputable coins will be a good start to have your journey on investment. Although some new coins have potential to be profitable, still it would be safe for a newbie to try investment first on known and reputable coins because new coins are risky most specially for the newbies. Learn to take hold of your funds. Upon investment, learn the thing that many people here in the forum always say "Invest only the amount you can afford to loose" because it will serve as your limitation and starting point upon doing investment so that if ever fail investment comes, you can easily move forward already taking no regrets.
To cut it all short, being knowledgeable on the thing you want to get with will save you from committing mistakes so better start up learning and the rest will follow. Do not rush things into your way because regrets always comes last so better take it easy on having the basics.