All those feelings are common in today's world with pandemics, rampant inflation, uncertain world politics, job demands etc,etc. Just don't let them overwhelm you. You are obviously making it doing what your doing, so just keep focused on that. Have faith in yourself and your ability and desire to take care of your family and yourself. Tell the naysayers if they don't have anything positive or constructive to say then keep it to themselves. If that doesn't help then start limiting contact with them and tell them why. If they truly care about you and are not some pompous , narcissistic A- hole then they will understand that. And try to find and develope relationships with positive, happy people with some common interests. Maybe find a new hobby or reignite interest in an old one. And a really big one is to find 10 min everyday, for yourself with NO distractions , no tv, no radio, NO PHONE, and close your eyes a relax and slow your body down . Teach yourself to meditate , it can really help you deal with and control those feelings of loneliness , fear,and self worth. Stand up tall look people in the eye and be proud of who you are , and what you have done and the fact that you are (T.C
B. ) taking care of business. Be greatful and appreciate all that you do have , because it could all be gone in the blink of an eye.
Just a few tips and suggestions of things that have worked for me and from someone who has battled depression , anxiety and loneliness most of my life.
Best wishes and bless you and your family.