Why do we think we're any different? I've heard golfers say, "I've been playing for 30 years, yet I never get any better." My question, "How much do you practice?" The answer is usually little or none. I even have a good friend who told me, "I've taken 4 lessons and I'm not getting any better. I know the solution. I just won't play for awhle and then I'll get better." I go back to my piano analogy. "That's exactly what piano teachers tell their students. You've had a lesson for the past hour. Now don't play until next time and you'll get better."
We want a magic bullet to fix us. Why are there so many drug ads on TV? Have a headache? Don't stop eating processed foods with lots of chemicals - take an Advil. Having heartburn? Don't give up the spicy foods, take our antacid. Back hurt? Don't stretch or do healing yoga positions, take our pill. Type 2 diabetes? We have a new way to take insulin. Don't bother losing those extra pounds that often also loses the diabetes. There are no magic bullets.
There's a saying in business, "The harder I work, the luckier I get." It's the same on the golf course. The more you practice your drives, the better the 'lucky' bounces are. The more you practice putting, the more lucky long putts you will sink
You may say, "I don't have time to go to a driving range and I have nowhere to putt."
Here's the answer. You can do both at home. Put some masking tape on your sliding glass doors and practice your backswing, the foundation of a good swing. Stand next to a mirror and hold a small ruler to practice your turn. Put a 36 inch ruler on the floor of your living room and practice pulling your putter back along the line and forward along the line. It will straighten out your putting stroke.
Want to get better? Practice, practice, practice.