yes, I can still get it but hopefully if what they claim it should keep me out of hospital
It's still a very complex situation, and that's not the most important picture (other than to you obviously).
You can obviously still catch it, but it will keep you from hospital (hopefully), but you can still spread it to people who aren't vaccinated, and it's entirely possible you could catch it now, and not even know, so wouldn't be isolating either.
My dad was double vaccinated in early Jan, is he still safe from catching it (along with thousands of others who were vulnerable, and are now double jabbed, but the effect might be running out again) ?
We don't know the answer to these questions, and there is the other problem, you could catch it and pass it on to someone who's immunity is getting lower, who you might be close to.
We should all still be cautious, until (much) more information is available, especially when cases have effectively doubled in a little over 7 days.