Yes, religion can be depressing since it usually uses fear to control people, for donation purposes.
If you accepted those beliefs as a young child it can hard to shake them later.
If you want to be logical, the Sumerian writings predated the Old Testament by 2000 years, yet tell the same Bible stories, using earlier Babylonian versions of the names used in the Old Testament.
And the tale is told from the point of aliens coming to earth to obtain gold, genetically engineering humans to work in the gold mines by mixing their DNA with DNA from local earth ape men, then engineering animals and crop plants in the garden of Aiden.
The origins of human beings according to ancient Sumerian texts
http://www.ancient-origins.net/human-origins-folklore/origins-human-beings-according-ancient-sumerian-texts-0065?
But if you have ever taken LSD, magic mushrooms, or meditated long enough to get in an existential state, you will find overwhelming, unconditional love, unity with the universe. Afterward it's more difficult to buy into hateful, judgmental religion.
To obey the Old Testament, you'd have to stone your kids for talking back, or carrying something on Saturday, etc., and the New Testament says women must be silent in church, wear a veil, marry, have children, and stay at home.
However, there are churches that simply celebrate love and life and accept everyone. I think Unitarian is one but you can google others if you want to attend. Or you can just get out in nature and meditate.