baby not emptying breast

Marissa
Ok so im hoping someone has experienced this. My 4 month old is unable to drain my breast when i nurse her which results to her eating every 1 1/2 hours. In April i went to see a LC and she told me it was my milk supply because she did a weighted feeding and babygirl only got an ounce after almost 20 min of nursing. She gave me a pumping routine to build my supply . Well i have upped my supply and LO is still not getting enough milk. So ive just been pumping and giving a bottle.(i can get about3-4 ounces eachtime i pump) i really want her to just get full off of my breast cause pumping all the time is driving me crazy. Please help!!!