Having trouble with Ki

or

Both show different ways to write Ki, and as a learner, 2 days ago, i'm unsure on the difference or if either is accepted.

They're essentially the same thing.
If anything, the difference between them is similar to the difference between western cursive / print/ type writing.

Any person able to read japanese will comprehend and accept both writing styles as well.

A more "complete" explanation on the matter could probably be given to you by Toritoribe'san(japanese native) though.

Be aware that it isnt much of a big deal and should not hinder your progress studying!

The left one "separated strokes" is usually, or more likely almost always, used when handwritten. It's the same also for さ.

I started out writing the first one when I was laboriously practicing my hiragana and ended up writing the second after a while, it's just quicker and easier. I don't really notice the difference when reading now.