what am I doing wrong

I've been jelquing and Bathmate for about 4 months...usually everyday besides days I'm too busy ..I normslly jelq for 20-30 min followed by a 15 min Bathmate session...my penis while jelquing feels great and looks engorged usually erect jelqs btw...my flacid penis seems longer and fuller at times my erections are harder but I just can't seem to get erect gains...my penis feels bigger but when I measure its the same. How can this be does anyone have any tips or advice why I don't have the erect gains yet

I also usea cock ring aftet I mainly want girth

Anyone?

My advice is the same advice given in SRT and to most men using a Bathmate, Penomet or Hydromax, the best routine to use that will bring consistent expansion and gains is the DLD Girth Blaster Routine found in SRT. It combines jelqing and pumping as you have described but in a different time sequence where jelqing and pumping are done in controlled sets of 5 minutes each, super-setted between the two for 3 sets (or longer if you feel able).