Choosing a softball glove?

I have had my glove for about 4 yrs and I am in love with it. It is a mizuno fielders glove. My only problem is that it is ripping on the inside and there is not enough padding anymore. My hand is bruising just from catching a ball and I need a new glove. I pitch and play first base. Could I buy a first-basemen mitt and wear it when I pitch as well? Would it have more padding in the palm to help with bruising?