Here's some constructive criticism: I really liked the guitar strums. They were good and I didn't notice any wrong chords. The voice itself isn't half bad, however, it sounds a bit autotuned. I suggest toning that down a little, because it doesn't sound good when there's too much autotune.
You should hear my first attempt at a song (kesha level autotune + had a cold). Thanks for the feedback though!
You probably should've not used any type of autotune if you used one, and you're good with the guitar