Getting WiFi for the first time. How do I do it?

[MoonBaby1]

I’ve survived on internet data for ever but zoom is eating my allowance. Can I get WiFi even if I don’t have a landline? Please help!

Do you mean, can I have the internet installed in my home if I don't have a land line?

Yes you can. Even if at present you don't have a line already in your home.
Give BT a call and see what they say. You may to have to tell them several times there's no line to your home at present, sometimes they don't listen properly.
I think Vodaphone and Virgin can also help you out too.