I know how utterly exhausting these non-sleeping babies can be! I can't offer any real advice (i never did find a way to stretch out the time between ds's frequent night wakings, and dd is hopeless too!) but i'd like to tell you this:

- frequent waking is common, normal and will have no negative effects on your baby (only on you!)

- things may get a bit better by themselves. dd only had half-hour naps til a couple of months ago; now she has one long one (1-2 hours) and a short one. i did absolutely nothing to change her sleep pattern - she just changed things by herself.

- breastfeeding is a wonderful thing to do for your baby. do you know for sure you don't have enough milk? i know that depleted feeling that comes from constant feeding, but chances are your milk is fine. giving formula may not be the best thing to do if you want to continue breastfeeding (this is not to criticise the use of formula - i'm just concerned that you might be better off getting some advice or reassurance from the aba or a lactation consultant - see one through a public hospital or ask your mchn if you can't afford private).

the other posters have given you some great ideas for combatting social isolation. get out there among the other mums and you will find people who are struggling with sleep deprivation, loneliness and the relentless demands of new motherhood. best of luck, and hugs to you.