Could I have autism?

A lot of my issues are with communication.

Sometimes I feel so shying can't talk even around my family.

I can almost never send a text because I feel like it's written in a way that makes me look mean or illiterate.

If I'm on a phone call for more then a few minutes or have to give specific information over the phone I start to panic and lose my voice.

If I'm in a confrontational situation it's like my brain shuts down.

When I'm stressed I unconsciously pull my hair and scratch myself.

I'm overly sensitive and cry at any confrontation.

I uncontrollably imagine conversations and situations that are sad or upsetting.

I have a hard time finding the motivation to do everything day activities like brushing my teeth and making food to eat.

I often feel immature compared to people my age.