I cannot sign in to my email in my web browser, this is very frustrating because I can't send emails on my laptop, where can I find help

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George Knock commented
Every time I try to use my email on my laptop I can't access yahoo mail, I can log into the main yahoo website then when I click mail it asks me to sign in again, when I enter all my correct login information to just loops me back to the sign in screen. There is know where I can find to contact anyone from yahoo for assistance, this means if i want to email documents from my laptop i have to use another email to send it to my yahoo acount so i can send it on my phone. this is obviously a massive pain as i just want to send them straight from my laptop and my yahoo account is my main one. If this problem persists i will have to changee my main email account as its important i can send documents frommy laptop.