When I changed schools, I concentrated on study for the first few months. Maybe not the best approach, but I could do the study - I didn't know how to make friends - so I focussed on that whilst adjusting. It helped me.
Hope it goes well for you! 
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Diagnosed: Autism Spectrum Disorder Level 1 without accompanying language impairment
I find it easiest to connect with people through the medium of fandoms, and enjoy the feeling of solidarity.
Too often, people say things they don't mean, and mean things they don't say.