Here is what I have learned from experience:
There is not enough food in your pantry or fridge to make you feel better when you are lonely. There is not enough chocolate in the world or wine in the bottle to cover your inherent fear or embarrassment. You will not find, anywhere in your job or relationships, enough sex or affirmation to give you the confidence you need to hold your head up every day and face the world. Ultimately, no amount of success nor excess of work hours will make you feel perfect and secure.
There are four antidotes I know of to assuage your anxiety:
*Take a hike in the out of doors.
*Make some music.
*Write about whatever is troubling you.
*Go work outside, move some rocks around, garden, pull weeds.
Think or pray or meditate while you are administering the antidote.
I have never had one antidote work consistently 100% of the time; nor are they instant. You can augment the effect by drinking liberally from your water bottle and engaging in thoughts of gratitude.
This is the wisdom and acknowledgement that comes with age. These are the gifts and remedies that come from the Earth, or Mother Nature, or Life, or the Universe. Use them well, but use them you must if you wish to live.