The following list of autism questionnaires can help you identify how many autistic traits you have. None of these questionnaires substitute a professional diagnosis, but they provide a springboard for further research. If you wish to self-diagnose or self-identify as autistic, I recommend you do further research before coming to a conclusion.
Free autism questionnaires
Camouflaging Autistic Traits Questionnaire (CAT-Q)
The AQ-10 Autism Spectrum Quotient Test
The Ritvo Autism Asperger Diagnostic Scale-Revised (RAADS-R)