This one is ridiculously true! Our life keeps showing us the fake ones. When the fake people are your own blood, you just have to keep a healthy distance and hope they find security with themselves! Insecure people are the fake ones.
Overthinking causes worry, doubt & fear - try to think constructively and go with the flow more - use your own intuition & knowledge to guide you - think positive. working on not over thinking to much.
Just because you aren't given the credit and haven't been recognised for your work doesn't mean you have to give up or stop. You don't always need credit, other people do not always have to know what you are capable of doing as long as you do.