Believe it or not, it isn't all that difficult. It boils down to a simple trust in the Lord. When he was just hours away from his crucifixion, Jesus said, "These things I have spoken to you that in me you might have peace; in the world you will have tribulation, but cheer up, I have overcome the world." (John 16.33) Wow!
People can debate putting their faith in Jesus til the cows come home, but I've got to tell you this: I'd much rather find peace in him personally then have one more debate over who he really is. He said he was God, then he proved it in more ways that can be counted. So if he says if we put our faith in him, we will find peace (and life, joy, comfort, and a boatload of other good things), I believe him. I take him at his word.
The deal about a simple faith in Jesus is this. Either what he says is true, or it isn't. Either we can find peace, or we can't. There's no door #3. For me, I choose to believe him. So even when I find myself navigating the white waters of life, I know that if I just rest in him, his power, promises, and presence, I will find peace. I hope you'll join me in that decision, and find peace, no matter what's going on around you!