feel like a failure..

I think I'm going to have to give up breastfeeding.. my daughter is 14 weeks old and EBF and the past week every night her sleeping is getting worse and worse. Tonight iv seen every hour and it's really starting to take its toll on me I'm exhausted. But I just feel like if I give up I'm a complete failure all I wanted to do was breastfeed for the full first year and I haven't even made it to 4 months and I'm considering quitting, I absolutely love breastfeeding so much and so does my daughter.. I'm considering bottle feeding at night, has anyone else tried this? How did it help? I'll try anything to help me keep feeding my daughter this way?