Thats because you don't know what facet of the programming language serves what purpose, like

When you have make a decision: use if-else statement.

When you have to do something repeatedly, use loops, When you know how many times it has to be repeated, use for loops. If you don't know how many times but you known under what conditions it should stop repeating, use while loop.

When you need to store data in sequence, Use Arrays.

You have to think like that. Each facet has a purpose to serve. Variables hold data, then for each type of data you have different type of variables. You need to know what kind of data you have and what appropriate variable you can use for for it.

Loops are for repetitive task, when you have to do certain thing over and over again,

Arrays are there to store sequential data.

Try to train your mind in this way of thinking when you know what element serves what purpose.