I have been where you are and I know how intimidating it is. First, figure out how you are going to make a consistent 1/4 inch seam. There are lots of options. They even make a foot with a guide on it to give you an exact 1/4 in seam. If nothing else tape cardboard, post its, or something a little bit thick on the plate of your machine to guide you. They sell precut sets of fabric if you don't have a rotary cutter and mat (charms, jellyrolls, mini charms, etc). Consider one of these if you lack the tools to cut accurately. If you go with precuts, you can find patterns that specialize in making quilts from these without a lot a subcutting. READ your pattern then REREAD it to be sure you understand it. It is likely that your first quilt will have a few flaws, but even a quilt with a few flaws can be a treasured gift for a beloved baby. Proudly gift your quilt and move on the next one! You will be hooked for life!
BTW I want to welcome you to the QB where you will learn something new every day from experienced quilters who give freely of their time and expertise to help you! This welcome comes from New Mexico's Rio Grande Valley with best wishes for you and your family.