FIRST SAILBOAT PURCHASER. NEED GUIDANCE

I’m new to sailing. I just took ASA 101. I only know the basics. I’m am looking to purchase, but I’m more anxious about purchasing than I am to actually sailing! I am gravitating towards a 30ft Catalina. We are not rich people , but could afford a used sailboat. My fear is purchasing a lemon! And to add pressure, my husband, while fully supportive of my dream to sail , he isn’t into it. He says it is like watching paint dry. Other sailors are discouraging me from purchasing a boat…FIRST SAILBOAT PURCHASER. NEED GUIDANCE