Lots of mistakes on both sides! But that's okay at this level. I would recommend trying to avoid blundering pieces and letting your pieces hang and that will increase your rating quite some bit! I also recommend not playing computers as they don't really simulate what a normal person would play at your level. Play real people and see where that gets you!
Looking for improvement

Improving Your Chess - Resources for Beginners and Beyond...
https://www.chess.com/blog/RussBell/improving-your-chess-resources-for-beginners-and-beyond

Hello,
I am a beginner at chess and I’m looking to improve my game. Any experienced players out there? How did I perform with this game? I was playing white pieces. It was player vs computer at level 3.