2. Learning is the easiest way to get by
3. Analysis is the best tool for more knowledge
4. Don't hold new altcoins and stay offline, they need close watch
5. Diversify your money, do not rely on few altcoins and don't have too many, watching them will be an headache
6. If you are new and in rush to see how crypto works start with Bitcoin and Ethereum.
7. Take profit when you see one, don't be too greedy
2. Correct including the always suggested method Do-your-own-research (dyor).
3. This is very much helpful if you chose to be a trader though applicable for investors too.
4. It's ok to hold new altcoins as long as you don't buy it because you just heard it from others. But if you conduct research and you think that's a good hold, it's fine. Although in our days, most of the new altcoins aren't really good.
5. The same as I've said in #1.
6. Bitcoin is the best option to understand the concept of cryptocurrencies, ETH is good too but that's just a secondary in option.
7. Yes! profit is profit no matter how high the price of the coin goes after you sold. Don't regret.
8. Avoid trading signals and ponzi schemes like Forsage, etc.