I too believed I had no talent for learning a second language. And, I've never been able to roll/trill rs. Which so many languages require.
Welsh is actually not all that complicated. It just looks like it to us English speakers. English is so much more complicated with all the strange ambiguous rules, and words that are spelled the same, but pronounced differently depending on what they mean. One could go on forever with how difficult it is to learn English ... even if it's your native language!
The Say Something in Welsh course (as do all the Say Something in <language> courses) involves you repeating simple English phrases in Welsh. Each week, you learn about a dozen new words, which are used in phrases. In addition, you repeat phrases you were introduced to in previous lessons. It's that speaking out loud part that locks it all into long-term memory.
The first few weeks, I thought I was never going to get it. I was never going to learn how to pronounce any Welsh words. I was never ever going to be able to roll my rs. I was wrong. Each time you hear the Welsh word pronounced correctly in the lesson, your mind recognizes the differences between what you said and what they said, and it tweaks your memory. Next thing you know, you're pronouncing the words correctly.
So, why did I decide to learn a new language? And why Welsh? We're not Welsh, at least as far as we know. I didn't know anyone in Wales. I'd never been to Wales. The first is a bit easier to answer.
Things got really difficult for me when my employer required us to return back to the office last July. I was able to get an ADA Accommodation to continue working from home. I went from having no migraines for the two years we worked remotely to having a migraine by midday each day I was required to be in the office. But mental health-wise? Yeah. It wasn't so good. One of the coping skills with stress, anxiety, depression, etc., is to do something new you've always wanted to do. Learn a new hobby. I'd always wanted to learn a new language, so ... why not? Apparently, quite a few people decided to learn a new language during the pandemic.
Why Welsh? Because I loved the sound of it. It's a beautiful language to listen to. Even with the ch ... which is pronounced just like the ch in the Scottish Loch (ch). That cat hacking up a hairball sound. Which I have amazingly learned how to make, but would die before making that sound in front of someone. I even somehow have learned to roll rs ... sometimes.
I originally started with Duolingo in December. Then started the Say Something in Welsh course mid-January. For me, Say Something in Welsh is easier than Duolingo. Not that there's anything wrong with Duolingo. But all the typing that's required with Duolingo is annoying. Duolingo uses TTL, so while the pronunciation is often close, it's not the same as hearing a real person speaking Welsh.