Am I autistic?

(before I start I’ll say that you’ll have to excuse my typing, I’m no good with punctuation but I understand a lot just never been good with structuring sentences or paragraphs) also just wanted to add in I’m not trying to offend anyone, like I said further down, I don’t really know enough about being autistic and what autism is, I’m just telling you what others have pointed out and attributed to me being autistic 

Hey everyone, I’m Michael 

I’ve always thought differently to others around me, like I’ll say something that’s completely normal to me and makes perfect sense but always get this bewildered look off the people around me, I go into way to much detail to the point it kills the conversation, I’m set in my ways (I can see other peoples point of view but it will take someone with a really good point I can’t argue with to make me agree) and have morals and beliefs that I will stand and die for (I want to make sure I’m a good husband so if my wife says I need to work on something I will try to put my all into it), i function based on logic alone and most jokes go way over my head, I struggle to function mentally (to the point it seems like I’m an idiot) when under pressure, someone will ask me to do something but I’ve got a million things going on in my head and I’m worried I’ll mess it up and that makes me mess up the task, I don’t know what else to say, I haven’t  done much research on autism and I think I’m kind of in denial, my sister and my wife think I am and other people around me, I have 2 amazing nieces and both of them are, I don’t get overwhelmed by noises and other triggers, idk I guess I’m just looking for advice if possible, I can tell you more but you’d have to ask, I don’t really know what you would be looking for

thanks everyone for the help and just reading this really, I appreciate it