I need encouragement

The first two weeks of motherhood were great. Of course I was tired but I am pretty sure I was running on adrenaline. My little one is 3 weeks today and the last week has been hell. He’s been sick with a cold and before that he started fighting his sleep and would refuse to sleep anywhere other than my chest. I sleep with him on the couch because i can’t move and feel safer but i desperately miss sleeping next to my husband and even just stretching out by myself. I’m in tears every night feeling like i don’t want to do this anymore. I’m breast feeding and literally dread feeding him and while I’m feeding him i just can’t wait for it to be over because of how uncomfortable it is. I love him so much and am super happy all day and enjoy motherhood but every night is killing me and i just don’t know what to do...