<snip>but one thing people really want concerning bitcoin transaction is its security protecting you from someone else knowing about your transaction
All transactions are public and transparent, what no one knows is who any address belongs to. There are no personal identifiers on a address making Bitcoin pseudoanonymous.
<snip>nobody controls it for you unless you have an issue then you can technically write to the blockchain support
There is no blockchain support. If you have an issue, you read up how to fix it and if it's a problem from the network anyone can suggest a fix for it and the community decides.
<snip>I really do prefer keeping money in blockchain or trust wallet than any others.
You don't keep money on the blockchain and trust wallet is not recommended.