In regards to worry, here’s an absolute must-read book... It can be life-changing.

‘How to Stop Worrying and Start Living’ by Dale Carnegie. The audiobook version is excellent.

As far as anxiety goes, that’s a completely different story. One can suffer from both worry and anxiety for completely unrelated reasons, or, suffer from one and not the other. Worry is easy to kick with the proper tools, it’s mental. Anxiety is usually more physical, and while changes in mentality can help greatly (as can meditation and exercise), it’s a hell of a burden.