Since the changes on 21st Feb 2018, is it possible to add a link to my website from my YouTube video?

I’d like to add an overlay of some kind to my videos, so people can directly click through to my website if they wish.

But all the tutorials I’ve found on how to do this, with annotations, cards, etc seem to be out of date – even ones from only December last year.
When I try to add a card, the ‘link’ option is disabled until I become part of the YouTube partner program, but I can’t become part of that without 1000 subscribers and 4000 watch hours in the last 12 months. Neither of which I’m close to.

I don’t want to make money from my videos, I only want to link to my own website. Can anyone tell me if that’s possible now, and if so, how?