>>82110444
In a workplace all you really need is a greeting. Like good morning when somebody walks in (even if you don't know them or work with them). You don't need to ask how their family is or whatever, I work in finance and I always greet people in warehouse even though I don't know their name or them personally
Also, stop saying your socially autistic and shit. You're a hard worker? Well so is everybody else that came to apply for a job. If you say you're retarded in a job interview nobody will hire you even out of pity. My advice is to first polish up a resume, researching no experience resumes. It'll look super basic but you don't have any experience. Try to tailor it to your type of job applications (customer service, warehouse, etc). From there research basic interview questions, like tell me about yourself why should we hire you etc and practice in front of a mirror. You're not going to improve your social ability by guarding a lot at night by yourself, at least try applying for a cashier at a gas station at night so you have some interaction.
Also, don't try on being optimistic at first. At least for me I have always tried to be less pessimistic. Instead of saying I can't do it, I would always try to emphasize patience to myself and that things take time. Change happens slowly, you're not going to waltz out of bed a changed person. You can do 10000 situps in a day you're not going to have a 6 pack next morning. Same applies with everything else