Nah, I've been self-employed and driven most of my adult life so I've done alright career-wise (though I'd likely have done better sober). I have always been a functional alcoholic, rarely drinking before evening. My sparkling personality has cost me a few relationships but not the drink. That is related though - I was self-medicating Bipolar for a long time and once I got properly sorted there I eventually figured out I didn't need it any more.
As to how bad it was - I'd have a bottle of whiskey most nights for the last few years. Before that, it was two/three bottles of wine a night (wine cheaper than diesel when I was in France!). That all culminated with me ending up in a coma for a couple weeks in 2015 and left me with (miraculously only) an insulin resistance that makes me functionally a diet-controlled diabetic. I should by all rights be dead, should be on permanent dialysis, should be brain damaged (shut up ) but am somehow the fittest I've ever been.
I'm reticent to give advice because I'll obviously end up projecting my experience on to you to some extent but personally, I can't have just one/three/five and leave it so it's all or nothing for me. Few will have the problem to the extent that I ended up with but if you're blacking out a couple nights a week then I think you're right to ask questions.
That (and a couple other similar comments) did set off a few alarm bells when I read it fwiw. It does suck to have to quit completely but I reached a point where I decided I'd rather never set foot in a pub again than continue this nonsense. And no, I gave up for a couple years in my mid-twenties, so not my longest period dry. From that, I can tell you that spending time in pubs sober is fucking awful (for me at least).
I've also had a few weeks here and there where I've not touched a drop, so being able to say that isn't necessarily your get-out-of-jail-free card because as you have probably worked out by now, I had a bit of a problem.
Hopefully, that can all serve as a warning to others and I've been pretty lucky. Feel free to PM me about any of it.
Good luck with it, you giant fanny.