Do other people have the same thoughts?
I have similar thoughts but not exactly the same as you describe. I have seen people truly, genuinely happy and fulfilled by becoming members of a church. However, what I have learned from my experience in life (I celebrated my 30th anniversary of being your age), I know that many people join and become happy because the church gives them a lot of things in addition to answers to questions that people most commonly have regarding God, the bible, etc. They look for a community they can belong to, for a healthy way of socializing, to find people who share the same values for friendships or for romantic purposes, and many others.
Those are as valid reasons to become part of those churches, which is the main difference between many good organized churches and religious denominations a high demand, controlling groups like the WT (and others). If you notice, the leadership of those organizations are accessible, open, and socialize with their members as much as any member of their church.
The biggest difference however, is the fact that in many of those churches you don't feel a lot of pressure if you decide to leave, if you ask questions, if you question your faith (or theirs), even if you don't believe everything they say many of them are ok with it. Not so with the WT.