Terrible skin!!!

I don’t know what to do about my skin. It looks so bad all the time. I only wear makeup like twice a week. I wash with cerave at night. I have tried so many different products like tea tree oil salicylic acid etc. NOTHING helps. I’m 32 years old and my acne is worse than ever. I didn’t have acne as a teenager! I am 8 weeks postpartum but I had bad skin before and during my pregnancy as well. It’s given me such low self esteem. Any advice or product recommendations from anyone with similar skin issues that has been able to fix it?? Oily, acne prone, hyperpigmentation etc.