Is there a way to make my hands more stable?

[the pianist]

My hands are not really stable. And for me it is kind of harder to play piano since my hands shake and it isn't firm or strong and that causes errors. Is there any way to make my hands more stable? Would finger exercises help or do I have to buy something for it? I don't know if it is possible but what can I do to make my hands stable enough to hit keys correctly?

[brogers70]

I didn't notice this post before I responded to your other post about finger independence. I think this post here is a question you should take to a doctor - if you actually have a tremor in your hands, you should have that evaluated by a medical person. Even if there's nothing medically wrong, it's not likely that anybody here can give you a very helpful answer without at least seeing what your hands are doing while you play. Without medical advice or a video, you could get a bunch of useless, maybe even counterproductive advice here.