It's rough, I'll say that just as a preamble. It's rough. I feel pretty blessed that if I really focus and stay calm I can almost completely not stutter for a decent period of time, maybe an hour tops. So I'll lead with that, sometimes I just get laser focused I can start off a first date and not stutter for a solid 30 min, and that helps set the tone. It's part of me but it doesn't define me. To that end, on first dates I'm just like all gas trying to not stutter. If I can get through at least like 15 min of the first date then I can tend to relax because, even after I tell people I stutter, they tend to shrug it off. Even if I did stutter some it's fine, just keep talking and letting things roll. That leads me to my next point... Most people shrug it off I've found. Even if I'm tripping over words and can't order and am just struggling a lot, people tend to be pretty chill. Now has that been a factor in them rejecting me? Maybe. But I've had girlfriend's before and I continue to have good life long friends who don't care about my stutter one bit. At this point in life if someone doesn't like my stutter that's on them. That said, I have had a girlfriend for about a year now and she doesn't really seem to care. I think she considers it a part of me. The bigger things are the things you mentioned which is general chemistry, etc. That's the hardest part. I would say if your goal is to never allow your partner to see your stutter, that may be an unattainable goal. A good partner should want all of you not just the part they want to put on insta, but tbh your stutter isn't a flaw. Its just how you are, no shame in that.