This is a mistake a lot of us make. If you track btc every minute you are more prone to panic selling. Btc has a lot of ups and downs, if you are in it long term the short price has little meaning
I disagree, expert trader usually monitors their coins at every minute because there are times that you need to look at the price every minute most especially during buying and exit of coins. You need to understand the benefits of monitoring your coins at that interval.
If you are a long term investor then this is true that you dont need to monitor your portfolio at this phase. It will only confuse your plan so I also encourage not looking at your coins or altcoins.