It's pretty easy to resize a simple knitting pattern, and the skills you use are the same ones you will need to tackle more complex adjustments.
Best knitting projects for beginners
How to Resize a Simple Knit Garment
Designing for Fat Bodies - Victoria Marchant Knits
Learn to knit and crochet with Easy Knits. Easy knit and crochet patterns
How to Make a Sweater Smaller Without Sewing Quick and Easy Methods - sewingquality - Medium
How to Knit a Farmhouse Kitchen Dishcloth - Making it in the Mountains
How to Knit a Sweater: Beginner's Tips and Patterns
Knitting A Garment at a Different Gauge – tin can knits
How to Resize a Knit Blanket, Dishcloth or Towel · Nourish and Nestle
Untwisted and twisted stitches - a left- and right-handed knitting tutorial
How to Knit a Farmhouse Kitchen Dishcloth - Making it in the Mountains