There are some basic steps to take towards being a better cook. It's great that you want to learn! You can do this!
First, get a simple meat thermometer. Bed Bath and Beyond, or Walmart or Target have simple thermometers that will help you tell when meat is done, while you're learning to cook. They're inexpensive. Chicken is done at 165 degrees, pork is done at 145 degrees and beef is medium rare at about 125-130 degrees.
Here's a great way to make a simple chicken dish.
Cut 2 or 3 boneless skinless chicken breasts into pieces, a little larger than the chicken nuggets that are sold in the grocery stores. Make sure they're pretty evenly sized. The thicker ends of the breasts may have to be sliced in half the long way to keep them the same thickness of the smaller ends. Place them in a ziplock bag, and fill the bag with cold water and about 3 tablespoons of salt. Seal securely and let the chicken sit in this salt brine in the fridge for several hours, or even overnight.
Then, remove the chicken pieces and rinse them. Dip them in milk (skim, buttermilk, whole milk, unflavored soy milk, your choice), and then dip them in Panko bread crumbs. Panko crumbs are usually sold where bread crumbs are, or in the international/Asian section of grocery stores. They're larger, lighter and flakier than regular bread crumbs.
Heat a couple tablespoons of oil in an oven-proof skillet, and when it's hot, lay the breaded chicken pieces in. Let them just turn a beautiful golden color, turn them over, remove the pan from the heat and put it into a 350 degree oven for about 12-15 minutes. When they're about 165 degrees they're done, and they'll be tender and perfect.
Keep learning, and keep trying. I have a food blog, and it's all designed to help people learn to master the basics of good simple cooking without using processed ingredients, using ingredients that you can actually pronounce. There are lots of good learning sites out there. Message me if you want my blog info (it's new).