Your life will change by doing. That is all.
All you need to do is practice what you've learned from reading. You don't need to spend $3,000 on a seminar. Most of these so-called gurus are running game on you to get to your wallet. A number of them are sociopathic scum. I don't need to put their names in print. You should know who they are.
If you want to spend three grand to improve yourself, then do it this way.
Take a trip and broaden your horizons:
Go scuba diving in Cozumel, Mexico, wild river rafting on the Middle Fork of the American River in California, do the brutal hike to the top of Half Dome in Yosemite Park, visit New York and see all the incredible sites there.
Buy some nice clothes.
Get in shape. Go to the gym. Work out.
Take dance classes and become a master at whatever style of dancing you choose. Women love a good dancer.
Read some good books. If you don't like to read, get free audio books from the library and listen to them when you workout, run or drive to work. You'll be shocked how many you can get through in a year. It makes you a more interesting person.
And you'll still have plenty of money left over.
Remember, these so-called gurus are running a business. They want your money. I never met a single person whose life changed from going to a seminar where so-called gurus basically blow sunshine up your hind end. Your life changes by doing. You decide to do something no matter what. You start on your path. You will make mistakes along the way until you hone your skills. That's normal.
Also, some of the over the top, glowing reviews are planted here. They are designed to get you really excited, because in that state they can get you to transfer your money to their pocket.