Why do we need to find the current?
I consider this an entirely legitimate question, and certainly a sincere one coming from a beginner.

For me, the answer was "Don't bother calculating current until you care about it."

Instead, start building some simple circuits. The motivation will soon arise all on its own, possibly accompanied by whiffs of "magic smoke" as we call it.

For example, hook up an LED to a 9V battery with a 330 ohm resistor between the two. If it doesn't light, reverse the leads and see if that works. Search on the web to explain to yourself why it works one way and not the other.

Then take out the resistor and hook the LED up directly to the battery. Ask yourself why the LED doesn't work anymore after that (this has to do with current :). Search on the web for "led burnout" which perhaps leads you here: How can voltage burn out an LED?

If you don't have electronic components available, take some out of old electronics and/or download a free simulator like LTspice and make simple circuits there.

All these motivations to calculate and understand arose for us in the course of building things. I recommend the same approach to you if the electrical engineering spirit calls to you. If not, find something that does call to you and do that :)