How to replace a broken laptop key?

I noticed a few days ago that the Z key on my laptop keyboard was suddenly really unresponsive (I have a blade stealth 13 that I got in 2021.) You had to press really hard to get it to work. I’m not great with computers and I’m not sure how I should have done it, but I tried to carefully take off the key with a screwdriver so I could swab under it, but when I was done, I couldn’t get the key back on. It was awkward, it lost its springiness, I couldn’t get it to work. I think I might have broken it. Where can I get a replacement key, and how can I put it back on without breaking it?