If you'd asked me a month ago, I'd have said, "No, I'm not a Welsh speaker." or "I'm just a learner." or "Tipyn bach." but that just changed a couple of weeks ago.
I had to go back to Wales for the funeral of my favourite aunt in the world. Although it was a really sad time, I was determined to take the opportunity to speak Welsh while I was there. I wasn't too worried about being able to say what I wanted to say; but I was very nervous about whether or not I'd understand other people (I really struggle with Radio Cymru), and I must admit to a bit of an irrational fear of being unmasked as the fraud I am.
Well, I had three conversations in Welsh: One with a woman in the Anna Davies shop in Betws-y-Coed, one with a woman in a Welsh bookshop in Llandudno (where I managed to snag the very last copy of @catrinlliarjones' book "O Mam Bach" in the whole place), and one with an old friend. I experienced two amazing things with those conversations:
1. I understood every word all three of them said, except for just ONE word - "contactless" - I was paying for my book in Llandudno, and the woman said "Contactless?" to me. I was completely flummoxed for a minute. I don't know that word! It doesn't even sound Welsh! Then I realised - it's English! I was so busy speaking Welsh that the English word just made no sense to me. (In fairness to me, they don't say "contactless" for credit card transactions here - they say "tap." So, it actually would have thrown me even in English.)
2. Both of the strangers that I talked to just answered me normally and continued with the conversation. Neither of them slowed down for me, neither asked if I was learning Welsh, both understood me perfectly. As far as I know, they might not even have realised I was "not a Welsh speaker" or "just a learner."
...and that's my tipping point. I'm not fluent, and I still have a long way to go, but I think I can say I am a Welsh speaker.