Usually when I'm concentrating on something (e.g. busy working on something, and my boss talks to me), or when I'm tired (e.g. at the gym working out near the end), my mindset reverts from Alpha to Beta.

There are also days when I feel really beta, where I would be afraid to approach and feel not motivated to do anything.

Any advice, reading material, or exercises on keeping my mindset consistently alpha and improving myself internally?