And welcome, Jenny!
It could be that you have a problem with your line, with the physical setup in your house or you just need a decent ISP, too early to tell. But speeds such as that are absolutely ridiculous.
I am wanting to know what the value of a number called ‘downstream SNR margin’ is? Apologies sincerely if you are an expert in all things DSL, btw. I will adjust language accordingly, of course.