The knack for me is to remember how many possibly useful things I can do that other people apparently can't. OK, I can't join in with a group conversation because my hearing doesn't work properly in groups of chattering voices...but I can hear a distant noise that means there's an oncoming vehicle, long before anyone else can, and warn people of it (saved a car-full of lives that way).
OK, I can get totally fixated on things and forget to listen to people and start to stim...but that same eyesight can spot tiny cracks in materials that mean there's going to be a problem with them that might cause a building to collapse, which is great for the specialist buildings work I do. And that same eyesight is great for spotting fake artwork or statues etc in an instant where experts might take weeks of tests.
I might get so focused on something that it gets really boring for others, but it means that for my work I can keep going for hours and hours and solve problems through sheer long term effort when 99% of others would have given up.
It's true that I can't handle a lot of sensory situations and can end up exhausted and in great sensory pain, but there again I can find fantastic beauty in patterns and sounds that others can't see or hear at all. Those things give me huge joy, even if my face doesn't always think to show it.
People also wrongly thought autistic spectrum people don't care about others. We usually care hugely. We're just rubbish at showing it properly. We love rules for how to show our love.
For many (not all) of us, the positives for us can balance the negatives, so please don't despair. We improve, we learn. More slowly and in a different way sometimes, but what we're like as children is not usually what we're like as adults. And services and support are getting better, too.
Have a very large cuppa. Ask whatever you need to. There's really good people aplenty here.