I dislocated my little finger on my right hand playing basketball again? is it just really weak now or what?

Maybe: If you have repeatedly dislocated the small finger ( i will assume at the pip joint) then more likely than not, the supporting ligaments of that joint (the collateral ligaments) may be attenuated resulting in a lax joint. This can predispose you to re-injury even with less trauma. You could try taping the small finger to the adjacent ring finger for additional support.

Ligaments still weak: Dislocations occur with the tearing of joint ligaments. Healing may take a long time (maybe never). This is not usually a boy problem. I would recoomend that you see a hand specialist. Further recommendations would be based on your physical examination, and xrays findings.