TTC in my 30s

I’m currently 32 and trying to get pregnant. I have three children from my ex husband (we are divorced) My boyfriend really wants a baby and so I’ve agreed to start trying but we are having no luck. We’ve been trying since earlier this year. I did go to my gyno and stated that everything looks and works properly but I’m growing frustrated. I’ve heard it is harder in your 30s but I didn’t think it would be this difficult. Are there any other ladies trying to get pregnant in their 30s? If so do you all have any tricks or tips?