Yeah, it's the guilt trip they send that often gets us doing or saying things we otherwise wouldn't have. In my mid 20s (I'm 53), I wrote a D/A letter - not because they were harrassing me; they weren't - I'd moved to another part of Melbourne where no one knew me. And I'd stopped associating with any JWs; hardly ever saw my own JW family, even. So I wrote the letter out of guilt, and defiance, and on top of that, still thought the elders had authority over my life. In hindsight, I didn't need to tell them anything. It's none of their business.
In your case I can see how you just needed them to get off your back. An dear friend who's now departed this world (and never been a JW or any religion) once told me: Never regret anything, no matter how much sadness, anger, pain; because one day down the track you'll realise it was the best thing to do 'at that time'. He told me: Even what we perceive as mistakes or wrongs we've made, are 'right' - because it's where we're at in our path in life.
Look for the positives at this time of your life that can come from this. Sometimes I make lists of the pros and cons of a given situation. Writing it all down helps - that's why this forum is so good:)