Ready to give up breastfeeding 😔

I'm currently 3 weeks pp and I'm trying to get my frozen supply up before I return to work. I've been constantly reading blogs and things to get tips on getting my supply up. So I've been drinking more water, Gatorade, eating oatmeal, etc. & also trying to pump while I nurse but I'm still only getting maybe 1oz each time if I'm lucky. Maybe I'm just being too hard on myself and this is normal but are any other moms going through this? Also, does anyone have tips to get my supply up or will that just naturally happen as my LO gets older? I really don't want to give up but I just feel so discouraged already & I just really want to have a good supply together for my babysitter when I return to work. I didn't realize how hard breastfeeding can be 😩