Separation anxiety

I think I have separation anxiety from my baby. I’ve only left her for the occasional hour with my partner. I exclusively breastfeed and she won’t take a bottle so I always need to be around. I hate the thought of others holding her for more than a few mins, even her grandparents. I’m not going back to work until September but I feel like I could never leave her. Any advice? I do think the breastfeeding plays a part.. I’m only planning to EBF until she’s 6 months. I just love her so much.