No churches or religious people really say "This church is the right one and all others are wrong." Same thing about religion. I'm Catholic, and my faith is that of 100% Christian, so I'm open to all Christians and their beliefs - Baptists, Methodists, Presbyterians, Pentecostals, etc. In fact, I usually go to a different church every couple of weeks.
Anyway, bringing up the original topic (I think), God exists, and it's really not enough to just believe in him - I'm afraid that alone will not get you to Heaven. The devil, himself even believes in God, he actually knows him. You have to have faith in the Lord, love the Lord, and accept the Lord in to all of your life. Pray to him, he will listen - in fact, he already knows what you'll pray about.
Anyway, the choice is yours...
Happiness is not about being perfect.
It is about seeing beyond the imperfections.