Depression getting worse.. 8 months pp

Is there anything that help to you mamas? I already had to increase my depression medication two months after I had my little guy. I’m now eight months postpartum and for the past week my mood goes from extremely low to OK. And then back down to low. I’m sick of feeling like this. My self-care is also gone down because I just don’t have the motivation or want to do anything. I don’t enjoy a lot of things anymore and I feel like I’m going to lose my mind. Should I go back to the doctor or wait it out :(