At the far extremes of backpacking you have the crazy ultralight backpacker who counts every single ounce and and wears a pack that looks more like a school bag than a backpack while at the other you have the backpacker who is prepared for everything mother nature could send their way and possibly a nuclear bomb to boot. Neither side is right and neither side is wrong. It's personal preference so you have to decide which is right for you.
How you backpack is up to you. It's a personal decision and it should always be a personal decision. Just because something works for me, doesn't mean it will work for you. We all apply different methods to accomplish the same goals and while there may be better ways to do something, it doesn't mean that's the only way to do it.
As you build experience with backpacking, you'll find yourself changing your preferences. This is good! Continue to iterate and get better at the craft of backpacking. Work at finding a good balance between both quality of gear, weight, and functionality. Be intentional in your purchases and if it doesn't work, sell the item to someone for a good price and go out and find something that you believe will work better.
Throughout this website, I will tell you what works for me and what doesn't. If you like what you see, then great! If you prefer a different method, then great! The most important thing is that you enjoy yourself. If you're not having fun, then yes, you might be doing it wrong. The best part is is that you can always improve.