Is my Stylus damaged?

I seriously doubt any damage done. 

Fully Manual TT: I tried some inexpensive after-market lifters, no success, then bought this excellent auto-lifter

https://www.amazon.com/gp/product/B07HKX6WL7/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

love it, however, you need room between the edge of the platter and edge of the arm mounting plate. Some TT like my JVC, many Denon's have a wide rim around the platter, reducing available space for placement. Some have enormous arm plates.

It fit between my JVC TT81 Rim and my long arm's small base, but no room for it between my 9" arm's base and platter edge because the shorter arm hole is closer to the platter, reducing available space.

It should be OK.

jili12, 2 hours? That's nothing. I left it running all night once! The cartridge is fine and no I did not cut through to the other side. 

Well, thanks to all for your comments.  It sound OK so I guess it will be fine.  Have not been able to find tone are lift that will work with my Turntable, it is a Rega RP8.  Any suggestions?

I left a 17D2 running in the lead out groove for two weeks while I was on holiday in France. I came back to a ring of vinyl swarf, just the excuse I needed to exchange it for the D3. I do try and catch that record before the centre groove since then.

Hope that makes you feel better.