Sometimes it's difficult for new anglers to develop confidence in artificial lures. Don't worry about knowing a variety of techniques or switching lures, you're not ready for that. You just need to pick a lure and stick with it. Just work on catching fish on one lure for now. As you catch more and more fish your knowledge will develop and you will know the answer to your questions. I suggest that you fish with a 4" worm with 8 lb line. You don't even have to move the lure, just let it sit on the bottom and fish like you would for catfish. It won't hurt to leave your line in the water for 20 minutes or more. Remember, sooner or later you will catch a fish. You would be surprised with this method of fishing. I caught bass this way for years when I started fishing. You will catch a lot of fish, most of them will be small, but I've caught several bass over 5 lbs with this method. Just remember that you have to have confidence in your presentation. Also, try to pay attention to everything that is happening around you and the lake. When something works, try to figure out why. It would be a good idea to keep a fishing log to help you learn.