Favoring left breast

My baby has such a hard time breast feeding sometimes. It’s so extremely frustrating. Most of the time it’s around 6 am sometimes during the day as well, and other times he does amazing. He throws a tantrum and gets so mad when I put him on the right breast so I’ve been trying to start him out on the right breast since he has trouble latching on that one but sometimes that doesn’t work and then I HAVE to give him a bottle because he acts like he completely forgot how to do it. Any tips?