_ Stick to Bitcoin: it's the real deal. Don't gamble on other cryptos
Even though I agree that Bitcoin is the real deal and it's the most powerful and important cryptocurrency out there, but what's the fun if you are just sticking to Bitcoin and not experimenting at all? And by experiment I don't mean that one should start buying every single altcoin blindly, there should be a proper way to do that, some research, a bit of analysis, and if a project or a coin seems good, there is nothing wrong in throwing a few bucks at it.
_ Avoid trading altcoin: you are not a genius trader, you will eventually get burned.
Or trade with caution, isn't it is better to simply be careful with your purchases than to totally avoid the whole group? I mean, some altcoins got great potential, and we all agree that diversification has always got great things to offer.