Grip strength help

Ive started developing pain in my hands in general like all of my fingers and joints and I currently am unable to go to physical therapy for it but I was wondering if there’s anything in the meantime I can do until I get that sorted?

Like maybe different types of forearm exercises? Its mainly my thumbs and fingers hurting doing basic tasks and I still wanna continue to lift, I do know lifting has helped me out with other medical problems in the past and these are similar symptoms so I don’t think a break is needed