I'm exactly on 93% too, I'm am going to clean out my Google drive which is full of stuff I could put elsewhere and will give me another few years. It's about time they increased their limit from 15GB though!
It's unlikely they will, there's an upgrade path called Google One that gets you 100GB storage for about $20 a year, across all their products, and shareable by family members. It also comes with human tech support.