To be honest, I'm the same way. (Want to meet up?) I only believe in God because I'm scared that if I don't he'll/she'll do something bad to me or be pissed when I die. Damn religious society.
Same reason I kinda believed between 13-17ish. When I die I will have last rights so im covered from the catholic point of view, ive never been a mormon so I can easily change after death and go to heaven, JW im ****ed regardless, baptist ive been baptized so its marginal either way, the rest of the psycho nut meg versions of christianity im either ****ed or because it requires accepting jesus as my personal lord and savior and the holy ghost etc simply belief in god means nothing in terms of salvation "even the demons believe" etc.
Ultimately I came to the conclusion that it is best to not believe. Pascal's wager was ridiculous. Simply because there are so many religions with sects or denominations in those religions that all speak different things even if you knew god was 100% real odds still say you would not find him but instead waste your life and go to hell anyways.
Also I realized that there is no reason to believe. I was once asked "why do you believe what you believe" it was a speaker at a religious event and he challenged us to find out why we believe. I absolutely was a bible boy at the time, close to god as you can get. I realized my reason why because my parents told me to, and they had been right about other things so naturally i accepted them at their word. When in fact the logical, rational and wise decisions based on such things were based on something entirely different when it came to matters of religion. It was based on faith, faith is being able to believe in something without any reason, evidence or proof. According to Hebrews "faith is being certain of what you hope for, and sure of what you do not see". Having this same faith allows a person to believe anything, very irrational and stupid. This god that god, this religion that religion. Looked for a reason to believe and have never found it.
Religion never gave me hope or purpose. It only gave me more questions, held me back and gave me a very weak sense of morality.
I don't have a religion because there is no reason to have one, I certainly didn't have one until someone taught me. As far as god goes there is always a chance he exists in some form or rather, but also the same chance that he is in the shape of a flying spaghetti monster.
If your god/religion gives you purpose, meaning, hope and if you help others without hurting anyone, then you are in the right place.