Ready to give up...,

So me and my husband been trying for well over year now with no luck at all. I have a daughter from a previous relationship and he as a son as well. I keep up with my fertile days my ovulation everything I just don’t know what else to do. Besides going to the doctor I’m kind of scared that I’m either too old or the cyst that I had removed two years ago did too much damage. We just want to baby so bad. Any other ladies out there going through this??