You need to be very careful when investing in Altcoins. If you do not pay attention, you may lose your BTC.
I am following these steps while investing in Altcoin.

• First I choose a coin with a high volume.
• Then I look at the daily and weekly price values for this coin.
• I buy the price when it falls below the average.
• I sell when the price is higher than the purchase price.

I have increasing my earnings without spending too much time like this. If you want to do technical analysis, you have to take time to do this.