You should listen to the sound advice from the previous posters in this thread.

That said, there is nothing wrong with looking for and using tools to help you in your trading.

One that you MAY want to check out (I am in no way endorsing this tool) is this one: https://coindata.io/about

In the end you are always going to have to make the decision on when to trade, but there are many good tools/signs available that will increase your chance of success, including learning about volume and how it affects price and why and so on.