@HammyStack, first of all, welcome.
You've come to the right place. We are all autistic "brothers and sisters" here. We've all got our different stories to tell and situations to describe, just like yours, but the underlying problems causing it is due to the autism condition. That said, as frustrating as this sounds, there are some things we just can't change. We are not neurotypical, we don't process information the same ways, so when someone says "Be yourself", it doesn't mean others are going to love and accept you, but rather, YOU have to love and accept you. Give yourself some grace. If you can, have a sense of humor about yourself. DO NOT let others tease, bully, and manipulate you. You're not "less than", but you are different. They call autism a "disorder" for the simple reason that it is not neurotypical, but truth be known, there is a LOT of "disordered" behavior that neurotypicals engage in. The troubles we have with neurotypicals is that, instinctually, deep down, they get uncomfortable, anxious, and fearful of people who are "different". Not their fault, it's just normal behavior. So, I would focus more upon being the best YOU, and not trying to be someone else. You are different. Embrace it. Adapt and overcome. If you work with the public at a job, you will often have to mask your autism as best you can, for the sake of your employer, maintaining your employment, and giving the customer a professional experience, but beyond that, when you are away from that situation, be yourself and relax.
Autism, from the Greek word "auto", meaning "self". It is quite fitting, because of our social and communication difficulties, we often end up by ourselves. Sure, we can be friendly, people can be friendly towards us, but we are sort of in this "glass box" that separates us and often prevents us from having closely-bonded friendships. Most of our favorite people in our lives are nothing more than friendly acquaintances, family, and co-workers. I know this often leads to frustration, anger, depression, and loneliness. All I can tell you is to focus your mental energies towards work, school, hobbies, special interests, travel, whatever. I am lucky enough to have a wife and 2 children, but I "walk alone", by myself, 90+% of the time.