Trading needs your time and perhaps your whole day because there is increase and decrease in price of the market so you should have eyes on market price. If the worth is higher then you should never buy any coin because it could be a cause of your loss. You should have patience and do no be in hurry to make the profit at once. It will surely take time.
But, we have trading bots where you can just program and they'll be the one that does the job for you so there is no need for you to monitor the market the whole day. These trading bots can get signals or updates about what's going on in the market so no need to worry.
If we are still a newbie in trading and on other things related to it then yes we might need a whole day to learn it but only if we want to learn faster, if not then we can just read and practice for a couple of hours per day. Patience is needed to wait for the coin to drop before we buy and also to wait for them to increase for us to sell. What the op wants is only impossible though.