Sympathise very much - sounds awful Havana.
My Dd was always a good feeder, but my milk supply was a problem. despite feeding round the clock for weeks, and getting loads of fsmily help to make sure i was eating properly etc. Dd was putting on very little weight, and was visibly frantic with hunger. We ended up bringing in some formula at five weeks (at which point Dd gained 8oz and finally regained her birthweight - phew!).
Now Dd 3 months, and about 50/50 BM/FM. Been frustrated at the lack of advice for how to mix effectively - don't believe that it is as clear cut as the bf counsellors would have you believe. I'm trying to maintain the supply - build up if poss. To that end, I'm trying to not make the bottle too easy. I've kept Dd on the slowest flow teats (they're already much easier than my milk!). also been using those nobbly variable flow ones - think they seem to require a similar action to bf. I'm fairly stingy with the bottles - try to make sure that she really does need the top up (albeit this strategy means more tears if I misjudge & she gets v. frustrated). Don't know if these things are helping to keep her working on the breast - as I said, been frustrated by the lack of constructive advice on mixing.
I used to pump every time she had a bottle,but it really is tough, so now am more lazy about it. Respect to you for keeping going so long.
Definitely understand what you mean about being envious of the 'milky cow' mums who can feed their baby in public (with a faint glow righteousness ) while relaxing and chatting with friends . I know that straight after feeding Dd will be very angry, until I bring out bottles. Also, that there will be a battle of wills to make sure that she is draining me properly b4 she get a top up. Don't bf in public any more, cos that def makes me feel inadequate - although bringing out the top ups at M&B group also makes me feel like a cop-out! Can't win!
& all the sterilising! At one point was doing about 12 bottles a day, with endless 2 oz feeds (half of which went off) to make sure I didn't over feed her formula...
Also been slightly fixated on it. I think dh is a saint for not screaming when yet another bf conversation begins. At times seriously wondered if persevering was the best thing for Dd. certainly b4 we started formula, all she did was eat (was sleeping about 8 hours a day, mostly in post prandial cat naps), which was tough on me and couldn't have been pleasant for her/good for her development.
Know that your problem is slightly different (and sounds much tougher), so don't know if hearing my expereience is useful to you - but wanted to write as how you were feeling struck a chord with me. Sorry for v. long post!
As to how long to keep going - well the bf counsellors made me think that when I brought in formula it would be very quick for milk to dry up, then I almost quit at 2 months, then again almost quit at 12 weeks - now proud that I've managed to keep going but won't beat myself up about it if it goes. Feel that I've worked v.hard at it & already in minority. Evidently formula isn't exactly toxic waste - think there is an element of 'brainwashing' from the bf mafia to encourage people to get over the 'hump' of establishing bf.
btw - I read a lot around the issue when I was trying to 'fix-it', and I remeber something called a 'supplemental feeding system'. The idea is that to formula/EBM bottle hangs round your neck, then you have tubes that go down, and are fixed on yuor nipple. Then the baby is stimulating your breasts while she feeds. Also supposed to help the baby get the idea that breast are for milk (i.e. not get too used to bottles). never seen one in a shop - think I read it in Dr Spock, which would mean that it may be something you can only get in the US.