Want to identify adhd Or autism. House.

I feel like I have adhd after seeing some articles and reading abt it I'm scared if that's actually true, I'm unable to identify it though from the symptoms given online that I have adhd or autism cause both of them have almost similar symptoms if I say abt myself then yes I'm unable to focus perfectly I even get distracted by door making sounds there are always thoughts running behind my mind , when I right answers in exams I never liked them to check it once revise it what I wrote on the paper cause it always irritated me, whenever I watch a movie or some informative lectures I get the need to pause them and process it what all happened till now, what they're saying and oftenly I forget things and I'm confusing all this with anxiety and Overthinking problem I have idk if it's adhd how did I got that cause never discussed abt it with my parents , it could be due to the environment too like saw domestic violence every other month in my house...