The best way is to research your altcoins throroughly, understand the risks and think carefully before you place any trades.

Successful ICO marketing campaigns utilize a number of different marketing channels, from the more conventional and recognized methodologies to the very latest advanced techniques used in marketing. As competition and budgets increase in the ICO sphere, so does the need for innovative, out-of-the-box marketing strategies. If you want to create an ICO (Initial Coin Offering) that is successful, you will need a multi-faceted approach that maximizes limited resources and utilizes different conventional and non-conventional marketing

My dear, life is all about risky, the most things we are afraid of doing most are the things that enrich us,you can't kill yourself over a lost money OK,your present now will determine your future, so move one with your life and try to be careful next time.remember life itself is risky. Nothing good comes easy,no pain no gain

I suggest you go for bitcoin but Bitcoin still isn't that secure. ... Don't buy using more than 1 percent of your net-worth, and be honest with yourself: Bitcoin is a gamble, not an investment. It's super risky and there are far better places to invest your money securely for both the long- and short-term.

Yes they are scam, following there legitimacy review, it has been confirmed as scam

The most important method is to research the team
A theme among the seasoned cryptocurrency investors is the need to first ensure the teams backing an investment product are reputable.
"Do they have any experience in blockchain or cryptocurrency? It's a big red flag to me when they have no experience in the space," says Fred Schebesta, Co-founder and CEO of cryptocurrency broker OTC"Also, if the people at the company are all anonymous... When a company won't tell you who's behind it, this to me shows a lack of credibility and trust of the brand."
Beyond researching team members listed on the site, it also makes sense to confirm that listed individuals are actually involved with the project as well.
"I look at the executives' backgrounds, and I sometimes ratify the quality of the advisory team if they are really advising in cases where it is borderline," says Stewart Rogers, analyst-at-large at VentureBeat

I suggest  Ledger Nano S hardware wallet. Or TREZOR hardware wallet..these are secure way to keep your cryptocurrency safe from hackers and malware

As a new investor,you need to invest in a well trusted crypto and don't invest what you can't afford to loose.

Obviously not everything except rather there will dependably be dangers related with any type of speculation

So far you appear to be superior to anything most, keep exploring into anything that interests you, different activities and coins and their guides, groups, and so on. It doesn't hurt to find out about business sectors and specialized examination. Individuals will just shill their property and encourage you to purchase those to better their position. Find out about the most ideal approach to secure your investments.hope this makes a difference