In my 30's and have had problems since I was a child after family bereavements. Then in my teens again after problems at school with bullying (socially awkward as hell so prime target) and an altercation with a boy. This led to panic disorder and agoraphobia and claustrophobia. Took a few years but managed to stop having full blown panic attacks and started going out again but still limited. Always carried on with my education but it was obviously impacted quite a bit, as my career has been. As an adult have always had an issue with anxiety and difficulties with people relationships (i get taken advantage of and dont read between the lines), had a string of bad relationships and the one before I met my husband was psychologically abusive before I finally managed to pluck up the courage to leave. Work wise I had a string of jobs where i wouldnt last more than max three years because I would work too much and then couldn't cope and would burn out. A couple of them I was bullied so badly i ended up off work and having a health crisis when i got told i had fibromyalgia (not sure about it) but i ended up off for nearly two years. anyway fast forward to now and we have a house of our own at last (id moved 16 times so far) which is great. i have two jobs and sadly my husbands job takes him away for days at a time so im constantly trying to juggle everything on my own to keep everything going like household, pets, parents etc. i have zero hobby/leisure time. i still struggle to read people and get them and at work im struggling with making stupid mistakes. i worry, i overthink, i assume at any moment someone is going to shout or scream at me that im stupid and incompetent. My confidence is low. i've lost assertiveness, i can do it, but it takes all i've got to fake it at work. My brain feels like its trying to move through treacle, like its always playing catch up and like i don't know my field of expertise any more (i left it while i was ill) and i feel constantly like i just want someone to give me idiots instructions and to point me at whatever it is i have to do and i could happily go a whole day being left alone as its easier that way. my ibs also reduces my confidence as i never know when its going to kick off and i just feel like why after all this time am i suddenly struggling again. i got told i have adhd last year which would explain why i cant keep my self and house organised, and am on the list for an asd assessment and i have low ferritin. Not sure how i can best help myself and get my anxiety back in check.
Sounds like a bit of a tough time for you.
I think once you have your assessment done you will be able to learn some coping strategies which will make your life easier. My son is being assessed for ASD at the moment and we see an occupational therapist who teaches him how to cope in certain situations at school and with his behaviour.
I had low ferritin for years, Drs make like its no big deal but it is, i got an iron infusion which finally brought it up to normal levels but because of my cycle its coming back down with each blood work check 
Do you see a therapist? I think it would be good for you, also a good diet and getting out in the fresh air is important too.