It is possible you have dulled the edge but could be something else also.
As your still new it may have just been poor technique or bad prep. I remember in my early days I would have a bad shave with tugging/pulling then the next shave would be OK and nothing done to the blade.
Give it a good carefully stropping and see how your next shave goes.
If you are convinced you need a honing you could try Neil Miller if Steve is busy...
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