I not get visa first time I try—how I can increase my chance of approval this time? Anybody?

Just fix what went wrong! Check the denial reasons, prep better docs, and maybe get pro help this time. You got this!

Get a lawyer to help if you want to get it this time

To increase your chances of U.S. visa approval, ensure you provide complete, accurate documentation. Address any issues from your previous application, strengthen ties to your home country, and clearly demonstrate your intent to return. But for for accurate advice I would suggest speaking to a Lawyer