Well done on getting this far despite the pain, I can't say I'd have managed to be so brave, I was lucky that we settled into BF quite easily, but I know so many don't. 6 months is a good next goal and I hope you reach it.
DD is 8 months so we've just done the bit you're talking about. We introduced solids around 6 months with a few false starts. I was BF every 2.5 hr in the day (I needed to convert 'on demand' into a regular routine just for my sanity) and whenever she woke at night. So 7-8 times in 24 hr I suppose.
DD was reluctant with solids so the HV advised me to drop a couple of feeds over a couple of weeks to get her more interested in solids. The first to go, and this almost happened naturally, was the 4pm-ish feed, and then the 11am-ish feed. Unlike the others I don't do milk 1 hr before a meal, rather I give the meal a bit before she'd be due a feed so she's actually hungry for it - and then if she ate nothing I know she'd get enough milk to make up the difference.
Our day now looks something like this:
7am breakfast
8:30am BF
11am snack (usually a baby bisuit)
12pm lunch
1:30pm BF
5pm Dinner
6:30pm bedtime BF
1-2 BF during the night.
She's picked up with her food intake now, so I'll probably let her taper off the afternoon BF by herself, and hopefully(!) when she goes through the night swap the breakfast and morning BF round so she gets a really good milk feed in the morning.
A FF baby should have a pint of formula a day between 6 and 12 months, so while that's not entirely translatable to BF it does mean that it's still important that a baby has milk for nutrition.
lilham, there's no rush on the solids. I fretted for 2 months when DD wasn't eating like her little friends. I think she's just getting the hang of it at 8 months and even now is picky despite eating a reasonable quantity. Some babies just take their time.