don't try to continuously follow the market and react to it with every little change that is going on, this is a poor strategy and you'll always lag behind the rest in this way. Instead, make a good research on the coins you like and are interested, and buy a pretty big stack (preferably during the ICO) and stick with it! You can own BTC gold as well to hedge again any potential losses from your altcoins trades, but it's important to stick to your initial strategy and not sell whenever a fork or update will happen. It's normal that alts will be influenced after a BTC fork, but trying to make a profit all the time will end you up making non, it's really a thin line between discipline and believing in what you have invested your money in.