DDH

Sorry to hear you've developed biker's bum!
Just a word of warning - don't make too many adjustments at once, otherwise you won't know which factors are affecting/influencing your discomfort.
The fore/aft (forewards/backwards) position of your saddle shouldn't really be used to bring you closer to the stem/handlebars - it's more to do with bringing your hips in alignment with your pedals.
The angle of your saddle may be a factor in how your sitbones are seated on the pads - as KnottedYet says, your front bottom shouldn't be doing any weightbearing to cause soreness/chafing. Minute adjustments to the up/down tilt of the nose of the saddle can make a massive difference.