Further Prediction

Hello, I have created a regression algorithm and everything is okay. Right now I want to use it for prediction,but I am stuck in the following points:- How can I use my algorithm for further prediction other than train and test data? Should I scale the new inputs the same way the train_inputs were scaled before plugging them into [model.predict] function? And if so, what about the output? how can I scale it back [descale]  to get the real value? Are there any built in functions that can do the job for me? Thank you so much for your help. Stay safe. Kind Regards.