Your physical mind is creating a very distorted perception of your sense of 'self' and this is due to unresolved mental & emotional patterns stemming from your earlier life experiences... These eventually need to be processed and released (purged)....

The current external circumstances do not actually warrant that you should feel 'worthless' - however your current inner state of being is contributing to the very real perception that you should feel this way in response to the external circumstances...

My suggestion to you is that you make a conscious effort to shift your focus/attention away from the present external circumstances and all those details - and instead you have to engage in introspection (inner work) and shift your focus/attention inwardly... Important to spend more time observing the compulsive and habitual activity of the mind - like you are a spectator studying what is transpiring within you. Increasingly doing this will de-enegerize the physical mind's activity and open the door for increased clarity, new insights, and a heightened state of awareness which will help you navigate through this and bring about your healing. Really make an earnest effort to find the connection between how your earlier/past life experiences and your reaction to those experiences is influencing you to react in a specific way to these current life circumstances. You have to get to the heart of the matter and once you do - significant progress will be made...

Wishing you well...