Stuck between two paths for marketing my home decluttering service

I've been running a small home decluttering service for about a year now, and I'm torn on how to grow it. On one hand, I've tried Facebook ads targeting local homeowners, which brought in a few quick jobs but cost a lot. Recently, I spent $200 on ads and got three new clients, but one canceled. On the other hand, I've had more success with handing out business cards at community centers and getting referrals from past clients, which feels more personal and builds trust. From referrals, I got two clients who booked multiple sessions. The ads give me visibility, but the personal touch seems to lead to repeat business. I'm not sure if I should double down on digital marketing or focus on grassroots efforts. What do you all think works better for a service based on trust and word-of-mouth?