Teenager feeling behind in life

Hi, I'm 16 and was recently diagnosed with autism having prevsoily been diagnosed with dyslexia and dyspraxia at 5. My mum has had suspicions since 6/7. Anyways, I've recently started sixth form and I've made zero friends making me feel isolated and unlovable. At my previous school I had a great group of friends but the enviromoent to make friends here t isn't rly compatible with my sensory needs. this has only added to my feelings of being behind in life- no first kiss, *** at make-up, no parties or anything else associated with the typical teenage experience such as reading festival. While I'm aware that those activates would be painful and a sensory overload I still feel left out and falling behind. Can anyone else relate?